252157984 has 96 divisors (see below), whose sum is σ = 554178240. Its totient is φ = 112223232.

The previous prime is 252157973. The next prime is 252158003. The reversal of 252157984 is 489751252.

It is a self number, because there is not a number n which added to its sum of digits gives 252157984.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2313322 + ... + 2313430.

It is an arithmetic number, because the mean of its divisors is an integer number (5772690).

Almost surely, 2^252157984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252157984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277089120).

252157984 is an abundant number, since it is smaller than the sum of its proper divisors (302020256).

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

252157984 is a wasteful number, since it uses less digits than its factorization.

252157984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 274 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 252157984 is about 15879.4831150135. The cubic root of 252157984 is about 631.7679273974.

The spelling of 252157984 in words is "two hundred fifty-two million, one hundred fifty-seven thousand, nine hundred eighty-four".