238142904 has 32 divisors (see below), whose sum is σ = 596213520. Its totient is φ = 79266816.

The previous prime is 238142881. The next prime is 238142909. The reversal of 238142904 is 409241832.

238142904 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 (238142909) 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, 10824 + ... + 24360.

Almost surely, 2^238142904 is an apocalyptic number.

238142904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

238142904 is an abundant number, since it is smaller than the sum of its proper divisors (358070616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238142904 is a wasteful number, since it uses less digits than its factorization.

238142904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14279 (or 14275 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 238142904 is about 15431.8794707579. The cubic root of 238142904 is about 619.8394520130.

It can be divided in two parts, 23814 and 2904, that multiplied together give a square (69155856 = 8316²).

The spelling of 238142904 in words is "two hundred thirty-eight million, one hundred forty-two thousand, nine hundred four".