2057831138 has 32 divisors (see below), whose sum is σ = 3581202240. Its totient is φ = 876994560.

The previous prime is 2057831107. The next prime is 2057831141. The reversal of 2057831138 is 8311387502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15170 + ... + 65922.

It is an arithmetic number, because the mean of its divisors is an integer number (111912570).

Almost surely, 2^2057831138 is an apocalyptic number.

2057831138 is a deficient number, since it is larger than the sum of its proper divisors (1523371102).

2057831138 is a wasteful number, since it uses less digits than its factorization.

2057831138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50882.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 2057831138 is about 45363.3237097989. The cubic root of 2057831138 is about 1271.9496246185.

The spelling of 2057831138 in words is "two billion, fifty-seven million, eight hundred thirty-one thousand, one hundred thirty-eight".