2057647208 has 16 divisors (see below), whose sum is σ = 3991126500. Its totient is φ = 993346816.

The previous prime is 2057647177. The next prime is 2057647217. The reversal of 2057647208 is 8027467502.

It can be written as a sum of positive squares in 2 ways, for example, as 2025180004 + 32467204 = 45002^2 + 5698^2 .

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, 4434353 + ... + 4434816.

Almost surely, 2^2057647208 is an apocalyptic number.

It is an amenable number.

2057647208 is a deficient number, since it is larger than the sum of its proper divisors (1933479292).

2057647208 is a wasteful number, since it uses less digits than its factorization.

2057647208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8869204 (or 8869200 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 2057647208 is about 45361.2963659550. The cubic root of 2057647208 is about 1271.9117276533.

The spelling of 2057647208 in words is "two billion, fifty-seven million, six hundred forty-seven thousand, two hundred eight".