238945664 has 32 divisors (see below), whose sum is σ = 476882640. Its totient is φ = 119257600.

The previous prime is 238945631. The next prime is 238945669. The reversal of 238945664 is 466549832.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238945669) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 88397 + ... + 91059.

Almost surely, 2^238945664 is an apocalyptic number.

It is an amenable number.

238945664 is a deficient number, since it is larger than the sum of its proper divisors (237936976).

238945664 is an equidigital number, since it uses as much as digits as its factorization.

238945664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378 (or 3366 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 47.

The square root of 238945664 is about 15457.8673820162. The cubic root of 238945664 is about 620.5351467016.

The spelling of 238945664 in words is "two hundred thirty-eight million, nine hundred forty-five thousand, six hundred sixty-four".