252742072 has 16 divisors (see below), whose sum is σ = 516972600. Its totient is φ = 114882720.

The previous prime is 252742067. The next prime is 252742109. The reversal of 252742072 is 270247252.

It is a congruent number.

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, 1435947 + ... + 1436122.

Almost surely, 2^252742072 is an apocalyptic number.

252742072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

252742072 is an abundant number, since it is smaller than the sum of its proper divisors (264230528).

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

252742072 is a wasteful number, since it uses less digits than its factorization.

252742072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872086 (or 2872082 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 252742072 is about 15897.8637558636. The cubic root of 252742072 is about 632.2553513359.

The spelling of 252742072 in words is "two hundred fifty-two million, seven hundred forty-two thousand, seventy-two".