238812057 has 40 divisors (see below), whose sum is σ = 390704160. Its totient is φ = 144167040.

The previous prime is 238812047. The next prime is 238812109. The reversal of 238812057 is 750218832.

It is not a de Polignac number, because 238812057 - 2⁷ = 238811929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238812037) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 385494 + ... + 386112.

It is an arithmetic number, because the mean of its divisors is an integer number (9767604).

Almost surely, 2^238812057 is an apocalyptic number.

238812057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

238812057 is a deficient number, since it is larger than the sum of its proper divisors (151892103).

238812057 is a wasteful number, since it uses less digits than its factorization.

238812057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 238812057 is about 15453.5451272515. The cubic root of 238812057 is about 620.4194672685.

The spelling of 238812057 in words is "two hundred thirty-eight million, eight hundred twelve thousand, fifty-seven".