238064664 has 16 divisors (see below), whose sum is σ = 595161720. Its totient is φ = 79354880.

The previous prime is 238064663. The next prime is 238064669. The reversal of 238064664 is 466460832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238064663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4959657 + ... + 4959704.

Almost surely, 2^238064664 is an apocalyptic number.

238064664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

238064664 is an abundant number, since it is smaller than the sum of its proper divisors (357097056).

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

238064664 is a wasteful number, since it uses less digits than its factorization.

238064664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9919370 (or 9919366 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 238064664 is about 15429.3442504858. The cubic root of 238064664 is about 619.7715634331.

The spelling of 238064664 in words is "two hundred thirty-eight million, sixty-four thousand, six hundred sixty-four".