238839755 has 16 divisors (see below), whose sum is σ = 357329664. Its totient is φ = 148886880.

The previous prime is 238839707. The next prime is 238839767. The reversal of 238839755 is 557938832.

It is not a de Polignac number, because 238839755 - 2⁶ = 238839691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309797 + ... + 310566.

It is an arithmetic number, because the mean of its divisors is an integer number (22333104).

Almost surely, 2^238839755 is an apocalyptic number.

238839755 is a deficient number, since it is larger than the sum of its proper divisors (118489909).

238839755 is a wasteful number, since it uses less digits than its factorization.

238839755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620386.

The product of its digits is 1814400, while the sum is 50.

The square root of 238839755 is about 15454.4412710392. The cubic root of 238839755 is about 620.4434522580.

The spelling of 238839755 in words is "two hundred thirty-eight million, eight hundred thirty-nine thousand, seven hundred fifty-five".