252644888 has 32 divisors (see below), whose sum is σ = 502329600. Its totient is φ = 118712832.

The previous prime is 252644867. The next prime is 252644921. The reversal of 252644888 is 888446252.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146978 + ... + 148686.

It is an arithmetic number, because the mean of its divisors is an integer number (15697800).

Almost surely, 2^252644888 is an apocalyptic number.

It is an amenable number.

252644888 is a deficient number, since it is larger than the sum of its proper divisors (249684712).

252644888 is a wasteful number, since it uses less digits than its factorization.

252644888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819 (or 2815 counting only the distinct ones).

The product of its digits is 983040, while the sum is 47.

The square root of 252644888 is about 15894.8069506993. The cubic root of 252644888 is about 632.1743029891.

The spelling of 252644888 in words is "two hundred fifty-two million, six hundred forty-four thousand, eight hundred eighty-eight".