1056210920 has 64 divisors (see below), whose sum is σ = 2494886400. Its totient is φ = 401898240.

The previous prime is 1056210863. The next prime is 1056210937. The reversal of 1056210920 is 290126501.

It is a super-2 number, since 2×1056210920² = 2231163015054492800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056210920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65942 + ... + 80378.

It is an arithmetic number, because the mean of its divisors is an integer number (38982600).

Almost surely, 2^1056210920 is an apocalyptic number.

1056210920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056210920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1247443200).

1056210920 is an abundant number, since it is smaller than the sum of its proper divisors (1438675480).

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

1056210920 is a wasteful number, since it uses less digits than its factorization.

1056210920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14538 (or 14534 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1056210920 is about 32499.3987636695. The cubic root of 1056210920 is about 1018.3964679930.

The spelling of 1056210920 in words is "one billion, fifty-six million, two hundred ten thousand, nine hundred twenty".