1056704385 has 16 divisors (see below), whose sum is σ = 1844429760. Its totient is φ = 512341440.

The previous prime is 1056704381. The next prime is 1056704393. The reversal of 1056704385 is 5834076501.

It is not a de Polignac number, because 1056704385 - 2² = 1056704381 is a prime.

It is a super-2 number, since 2×1056704385² = 2233248314556456450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056704381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3201970 + ... + 3202299.

It is an arithmetic number, because the mean of its divisors is an integer number (115276860).

Almost surely, 2^1056704385 is an apocalyptic number.

1056704385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056704385 is a deficient number, since it is larger than the sum of its proper divisors (787725375).

1056704385 is a wasteful number, since it uses less digits than its factorization.

1056704385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404288.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 1056704385 is about 32506.9897868135. The cubic root of 1056704385 is about 1018.5550426238. Note that the first 3 decimals are identical.

The spelling of 1056704385 in words is "one billion, fifty-six million, seven hundred four thousand, three hundred eighty-five".