1055056840 has 32 divisors (see below), whose sum is σ = 2375832960. Its totient is φ = 421675200.

The previous prime is 1055056831. The next prime is 1055056841. The reversal of 1055056840 is 486505501.

It is a happy number.

It is a super-2 number, since 2×1055056840² = 2226289871261571200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1055056796 and 1055056805.

It is not an unprimeable number, because it can be changed into a prime (1055056841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41425 + ... + 61855.

It is an arithmetic number, because the mean of its divisors is an integer number (74244780).

Almost surely, 2^1055056840 is an apocalyptic number.

1055056840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055056840 is an abundant number, since it is smaller than the sum of its proper divisors (1320776120).

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

1055056840 is a wasteful number, since it uses less digits than its factorization.

1055056840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21733 (or 21729 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 1055056840 is about 32481.6385054695. The cubic root of 1055056840 is about 1018.0254122674.

The spelling of 1055056840 in words is "one billion, fifty-five million, fifty-six thousand, eight hundred forty".