252336638 has 4 divisors (see below), whose sum is σ = 378504960. Its totient is φ = 126168318.

The previous prime is 252336631. The next prime is 252336641. The reversal of 252336638 is 836633252.

252336638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252336631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63084158 + ... + 63084161.

It is an arithmetic number, because the mean of its divisors is an integer number (94626240).

Almost surely, 2^252336638 is an apocalyptic number.

252336638 is a deficient number, since it is larger than the sum of its proper divisors (126168322).

252336638 is a wasteful number, since it uses less digits than its factorization.

252336638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126168321.

The product of its digits is 155520, while the sum is 38.

The square root of 252336638 is about 15885.1074280283. The cubic root of 252336638 is about 631.9170947571.

The spelling of 252336638 in words is "two hundred fifty-two million, three hundred thirty-six thousand, six hundred thirty-eight".