238621264 has 80 divisors (see below), whose sum is σ = 548000640. Its totient is φ = 98542080.

The previous prime is 238621259. The next prime is 238621277. The reversal of 238621264 is 462126832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361767 + ... + 362425.

It is an arithmetic number, because the mean of its divisors is an integer number (6850008).

Almost surely, 2^238621264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238621264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274000320).

238621264 is an abundant number, since it is smaller than the sum of its proper divisors (309379376).

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

238621264 is a wasteful number, since it uses less digits than its factorization.

238621264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 782 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 238621264 is about 15447.3707795210. The cubic root of 238621264 is about 620.2542003074.

The spelling of 238621264 in words is "two hundred thirty-eight million, six hundred twenty-one thousand, two hundred sixty-four".