1056111840 has 144 divisors (see below), whose sum is σ = 4118875488. Its totient is φ = 241394688.

The previous prime is 1056111829. The next prime is 1056111857. The reversal of 1056111840 is 481116501.

1056111840 is a `hidden beast` number, since 1 + 0 + 5 + 611 + 1 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1056111840² = 2230744437176371200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42307 + ... + 62466.

It is an arithmetic number, because the mean of its divisors is an integer number (28603302).

Almost surely, 2^1056111840 is an apocalyptic number.

1056111840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056111840 is an abundant number, since it is smaller than the sum of its proper divisors (3062763648).

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

1056111840 is a wasteful number, since it uses less digits than its factorization.

1056111840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104801 (or 104790 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1056111840 is about 32497.8743920275. The cubic root of 1056111840 is about 1018.3646227509.

It can be divided in two parts, 1056 and 111840, that added together give a square (112896 = 336²).

The spelling of 1056111840 in words is "one billion, fifty-six million, one hundred eleven thousand, eight hundred forty".