238864550 has 24 divisors (see below), whose sum is σ = 447497400. Its totient is φ = 94855680.

The previous prime is 238864543. The next prime is 238864559. The reversal of 238864550 is 55468832.

238864550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238864498 and 238864507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238864559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10235 + ... + 24134.

It is an arithmetic number, because the mean of its divisors is an integer number (18645725).

Almost surely, 2^238864550 is an apocalyptic number.

238864550 is a deficient number, since it is larger than the sum of its proper divisors (208632850).

238864550 is a wasteful number, since it uses less digits than its factorization.

238864550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34520 (or 34515 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 238864550 is about 15455.2434468047. The cubic root of 238864550 is about 620.4649218316.

The spelling of 238864550 in words is "two hundred thirty-eight million, eight hundred sixty-four thousand, five hundred fifty".