238664734 has 32 divisors (see below), whose sum is σ = 472594176. Its totient is φ = 87515520.

The previous prime is 238664707. The next prime is 238664737. The reversal of 238664734 is 437466832.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238664737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42964 + ... + 48199.

It is an arithmetic number, because the mean of its divisors is an integer number (14768568).

Almost surely, 2^238664734 is an apocalyptic number.

238664734 is a deficient number, since it is larger than the sum of its proper divisors (233929442).

238664734 is a wasteful number, since it uses less digits than its factorization.

238664734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91200.

The product of its digits is 580608, while the sum is 43.

The square root of 238664734 is about 15448.7777510067. Note that the first 4 decimals coincide. The cubic root of 238664734 is about 620.2918622387.

The spelling of 238664734 in words is "two hundred thirty-eight million, six hundred sixty-four thousand, seven hundred thirty-four".