1056136428 has 48 divisors (see below), whose sum is σ = 2744784000. Its totient is φ = 351190224.

The previous prime is 1056136423. The next prime is 1056136429. The reversal of 1056136428 is 8246316501.

It is a happy number.

1056136428 is a `hidden beast` number, since 1 + 0 + 5 + 6 + 1 + 3 + 642 + 8 = 666.

It is a super-2 number, since 2×1056136428² = 2230848309097198368, 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 = 1056136392 and 1056136401.

It is not an unprimeable number, because it can be changed into a prime (1056136421) 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, 33583 + ... + 56921.

It is an arithmetic number, because the mean of its divisors is an integer number (57183000).

Almost surely, 2^1056136428 is an apocalyptic number.

1056136428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1056136428 is an abundant number, since it is smaller than the sum of its proper divisors (1688647572).

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

1056136428 is a wasteful number, since it uses less digits than its factorization.

1056136428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23771 (or 23763 counting only the distinct ones).

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

The square root of 1056136428 is about 32498.2526914910. The cubic root of 1056136428 is about 1018.3725257507.

The spelling of 1056136428 in words is "one billion, fifty-six million, one hundred thirty-six thousand, four hundred twenty-eight".