252043236 has 36 divisors (see below), whose sum is σ = 652652364. Its totient is φ = 81964800.

The previous prime is 252043229. The next prime is 252043243. The reversal of 252043236 is 632340252.

It is an interprime number because it is at equal distance from previous prime (252043229) and next prime (252043243).

It can be written as a sum of positive squares in 2 ways, for example, as 57608100 + 194435136 = 7590^2 + 13944^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 83905 + ... + 86856.

Almost surely, 2^252043236 is an apocalyptic number.

It is an amenable number.

252043236 is an abundant number, since it is smaller than the sum of its proper divisors (400609128).

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

252043236 is a wasteful number, since it uses less digits than its factorization.

252043236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170812 (or 170807 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 252043236 is about 15875.8696139771. The cubic root of 252043236 is about 631.6720812612.

Adding to 252043236 its reverse (632340252), we get a palindrome (884383488).

The spelling of 252043236 in words is "two hundred fifty-two million, forty-three thousand, two hundred thirty-six".