238220564 has 12 divisors (see below), whose sum is σ = 416995488. Its totient is φ = 119079000.

The previous prime is 238220551. The next prime is 238220573. The reversal of 238220564 is 465022832.

238220564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×238220564² = 113498074224956192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238220564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21659 + ... + 30749.

It is an arithmetic number, because the mean of its divisors is an integer number (34749624).

Almost surely, 2^238220564 is an apocalyptic number.

It is an amenable number.

238220564 is a deficient number, since it is larger than the sum of its proper divisors (178774924).

238220564 is a wasteful number, since it uses less digits than its factorization.

238220564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15646 (or 15644 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 238220564 is about 15434.3954854086. The cubic root of 238220564 is about 619.9068226260.

The spelling of 238220564 in words is "two hundred thirty-eight million, two hundred twenty thousand, five hundred sixty-four".