238672390 has 16 divisors (see below), whose sum is σ = 468666000. Its totient is φ = 86789920.

The previous prime is 238672387. The next prime is 238672391. The reversal of 238672390 is 93276832.

238672390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238672391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084765 + ... + 1084984.

It is an arithmetic number, because the mean of its divisors is an integer number (29291625).

Almost surely, 2^238672390 is an apocalyptic number.

238672390 is a deficient number, since it is larger than the sum of its proper divisors (229993610).

238672390 is a wasteful number, since it uses less digits than its factorization.

238672390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169767.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 238672390 is about 15449.0255356123. The cubic root of 238672390 is about 620.2984948395.

The spelling of 238672390 in words is "two hundred thirty-eight million, six hundred seventy-two thousand, three hundred ninety".