2057731320 has 64 divisors (see below), whose sum is σ = 6340050720. Its totient is φ = 533896704.

The previous prime is 2057731309. The next prime is 2057731339. The reversal of 2057731320 is 231377502.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 227287 + ... + 236166.

Almost surely, 2^2057731320 is an apocalyptic number.

2057731320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2057731320 is an abundant number, since it is smaller than the sum of its proper divisors (4282319400).

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

2057731320 is a wasteful number, since it uses less digits than its factorization.

2057731320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463504 (or 463500 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 2057731320 is about 45362.2234904772. The cubic root of 2057731320 is about 1271.9290583828.

The spelling of 2057731320 in words is "two billion, fifty-seven million, seven hundred thirty-one thousand, three hundred twenty".