252352040 has 16 divisors (see below), whose sum is σ = 567792180. Its totient is φ = 100940800.

The previous prime is 252352039. The next prime is 252352043. The reversal of 252352040 is 40253252.

It can be written as a sum of positive squares in 2 ways, for example, as 210076036 + 42276004 = 14494^2 + 6502^2 .

It is a junction number, because it is equal to n+sod(n) for n = 252351997 and 252352015.

It is not an unprimeable number, because it can be changed into a prime (252352043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3154361 + ... + 3154440.

Almost surely, 2^252352040 is an apocalyptic number.

252352040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252352040 is an abundant number, since it is smaller than the sum of its proper divisors (315440140).

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

252352040 is a wasteful number, since it uses less digits than its factorization.

252352040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308812 (or 6308808 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 252352040 is about 15885.5922143306. The cubic root of 252352040 is about 631.9299513775.

The spelling of 252352040 in words is "two hundred fifty-two million, three hundred fifty-two thousand, forty".