1067387940 has 36 divisors (see below), whose sum is σ = 3237743964. Its totient is φ = 284636736.

The previous prime is 1067387929. The next prime is 1067387957. The reversal of 1067387940 is 497837601.

It can be written as a sum of positive squares in 2 ways, for example, as 259918884 + 807469056 = 16122^2 + 28416^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1067387940² = 2278634028914887200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2964787 + ... + 2965146.

Almost surely, 2^1067387940 is an apocalyptic number.

1067387940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1067387940 is an abundant number, since it is smaller than the sum of its proper divisors (2170356024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1067387940 is a wasteful number, since it uses less digits than its factorization.

1067387940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5929948 (or 5929943 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1067387940 is about 32670.9035687720. The cubic root of 1067387940 is about 1021.9761573680.

The spelling of 1067387940 in words is "one billion, sixty-seven million, three hundred eighty-seven thousand, nine hundred forty".