238404747 has 24 divisors (see below), whose sum is σ = 371206800. Its totient is φ = 135702336.

The previous prime is 238404731. The next prime is 238404773. The reversal of 238404747 is 747404832.

238404747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 238404747 - 2⁴ = 238404731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238404847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36529 + ... + 42557.

It is an arithmetic number, because the mean of its divisors is an integer number (15466950).

Almost surely, 2^238404747 is an apocalyptic number.

238404747 is a deficient number, since it is larger than the sum of its proper divisors (132802053).

238404747 is a wasteful number, since it uses less digits than its factorization.

238404747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315 (or 6308 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 39.

The square root of 238404747 is about 15440.3609737596. The cubic root of 238404747 is about 620.0665441930.

The spelling of 238404747 in words is "two hundred thirty-eight million, four hundred four thousand, seven hundred forty-seven".