2056904680 has 16 divisors (see below), whose sum is σ = 4628035620. Its totient is φ = 822761856.

The previous prime is 2056904659. The next prime is 2056904713. The reversal of 2056904680 is 864096502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1909864804 + 147039876 = 43702^2 + 12126^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 51422617 = 2056904680 / (2 + 0 + 5 + 6 + 9 + 0 + 4 + 6 + 8 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25711269 + ... + 25711348.

Almost surely, 2^2056904680 is an apocalyptic number.

2056904680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2056904680 is an abundant number, since it is smaller than the sum of its proper divisors (2571130940).

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

2056904680 is a wasteful number, since it uses less digits than its factorization.

2056904680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51422628 (or 51422624 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2056904680 is about 45353.1110289030. Note that the first 3 decimals coincide. The cubic root of 2056904680 is about 1271.7587141057.

The spelling of 2056904680 in words is "two billion, fifty-six million, nine hundred four thousand, six hundred eighty".