252189768 has 16 divisors (see below), whose sum is σ = 630474480. Its totient is φ = 84063248.

The previous prime is 252189739. The next prime is 252189787. The reversal of 252189768 is 867981252.

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, 5253930 + ... + 5253977.

It is an arithmetic number, because the mean of its divisors is an integer number (39404655).

Almost surely, 2^252189768 is an apocalyptic number.

It is an amenable number.

252189768 is an abundant number, since it is smaller than the sum of its proper divisors (378284712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252189768 is a wasteful number, since it uses less digits than its factorization.

252189768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10507916 (or 10507912 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 252189768 is about 15880.4838717213. The cubic root of 252189768 is about 631.7944706354.

The spelling of 252189768 in words is "two hundred fifty-two million, one hundred eighty-nine thousand, seven hundred sixty-eight".