238278992 has 40 divisors (see below), whose sum is σ = 528686400. Its totient is φ = 101912832.

The previous prime is 238278991. The next prime is 238279007. The reversal of 238278992 is 299872832.

238278992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 238278992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238278991) 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, 61859 + ... + 65597.

It is an arithmetic number, because the mean of its divisors is an integer number (13217160).

Almost surely, 2^238278992 is an apocalyptic number.

It is an amenable number.

238278992 is an abundant number, since it is smaller than the sum of its proper divisors (290407408).

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

238278992 is a wasteful number, since it uses less digits than its factorization.

238278992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323 (or 4317 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 238278992 is about 15436.2881548642. The cubic root of 238278992 is about 619.9574996882.

The spelling of 238278992 in words is "two hundred thirty-eight million, two hundred seventy-eight thousand, nine hundred ninety-two".