1067432985 has 60 divisors (see below), whose sum is σ = 1958357412. Its totient is φ = 556051392.

The previous prime is 1067432983. The next prime is 1067432987. The reversal of 1067432985 is 5892347601.

1067432985 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1067432983) and next prime (1067432987).

It can be written as a sum of positive squares in 2 ways, for example, as 580039056 + 487393929 = 24084^2 + 22077^2 .

It is not a de Polignac number, because 1067432985 - 2¹ = 1067432983 is a prime.

It is a super-2 number, since 2×1067432985² = 2278826354932020450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

1067432985 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1067432985.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067432983) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4786584 + ... + 4786806.

It is a 2-persistent number, because it is pandigital, and so is 2⋅1067432985 = 2134865970, but 3⋅1067432985 = 3202298955 is not.

Almost surely, 2^1067432985 is an apocalyptic number.

1067432985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1067432985 is a deficient number, since it is larger than the sum of its proper divisors (890924427).

1067432985 is an frugal number, since it uses more digits than its factorization.

1067432985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1067432985 is about 32671.5929363721. The cubic root of 1067432985 is about 1021.9905333559.

The spelling of 1067432985 in words is "one billion, sixty-seven million, four hundred thirty-two thousand, nine hundred eighty-five".