385021238 has 32 divisors (see below), whose sum is σ = 668971008. Its totient is φ = 162792000.

The previous prime is 385021229. The next prime is 385021267. The reversal of 385021238 is 832120583.

It is a super-2 number, since 2×385021238² = 296482707422105288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365813 + ... + 366863.

It is an arithmetic number, because the mean of its divisors is an integer number (20905344).

Almost surely, 2^385021238 is an apocalyptic number.

385021238 is a deficient number, since it is larger than the sum of its proper divisors (283949770).

385021238 is a wasteful number, since it uses less digits than its factorization.

385021238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 385021238 is about 19621.9580572378. The cubic root of 385021238 is about 727.4920114221.

The spelling of 385021238 in words is "three hundred eighty-five million, twenty-one thousand, two hundred thirty-eight".