1056686040 has 64 divisors (see below), whose sum is σ = 3522290400. Its totient is φ = 281782656.

The previous prime is 1056686039. The next prime is 1056686089. The reversal of 1056686040 is 406866501.

1056686040 is a `hidden beast` number, since 10 + 566 + 86 + 0 + 4 + 0 = 666.

It is a super-2 number, since 2×1056686040² = 2233170774261763200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1056685986 and 1056686004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488127 + ... + 490286.

Almost surely, 2^1056686040 is an apocalyptic number.

1056686040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056686040 is an abundant number, since it is smaller than the sum of its proper divisors (2465604360).

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

1056686040 is a wasteful number, since it uses less digits than its factorization.

1056686040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978433 (or 978423 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1056686040 is about 32506.7076155061. The cubic root of 1056686040 is about 1018.5491483546.

The spelling of 1056686040 in words is "one billion, fifty-six million, six hundred eighty-six thousand, forty".