1074641985 has 48 divisors (see below), whose sum is σ = 1936334400. Its totient is φ = 571769280.

The previous prime is 1074641969. The next prime is 1074641987. The reversal of 1074641985 is 5891464701.

1074641985 is a `hidden beast` number, since 107 + 464 + 1 + 9 + 85 = 666.

It is not a de Polignac number, because 1074641985 - 2⁴ = 1074641969 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1074641985.

It is not an unprimeable number, because it can be changed into a prime (1074641987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 692991 + ... + 694539.

It is an arithmetic number, because the mean of its divisors is an integer number (40340300).

Almost surely, 2^1074641985 is an apocalyptic number.

1074641985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1074641985 is a deficient number, since it is larger than the sum of its proper divisors (861692415).

1074641985 is an equidigital number, since it uses as much as digits as its factorization.

1074641985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140 (or 2128 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1074641985 is about 32781.7324892996. The cubic root of 1074641985 is about 1024.2860735480.

The spelling of 1074641985 in words is "one billion, seventy-four million, six hundred forty-one thousand, nine hundred eighty-five".