252438331 has 4 divisors (see below), whose sum is σ = 253162000. Its totient is φ = 251714664.

The previous prime is 252438293. The next prime is 252438371. The reversal of 252438331 is 133834252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252438331 - 2⁷ = 252438203 is a prime.

It is a super-2 number, since 2×252438331² = 127450221916131122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252438293 and 252438302.

It is not an unprimeable number, because it can be changed into a prime (252438371) 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, 361311 + ... + 362008.

It is an arithmetic number, because the mean of its divisors is an integer number (63290500).

Almost surely, 2^252438331 is an apocalyptic number.

252438331 is a deficient number, since it is larger than the sum of its proper divisors (723669).

252438331 is an equidigital number, since it uses as much as digits as its factorization.

252438331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723668.

The product of its digits is 17280, while the sum is 31.

The square root of 252438331 is about 15888.3079967629. The cubic root of 252438331 is about 632.0019720002.

The spelling of 252438331 in words is "two hundred fifty-two million, four hundred thirty-eight thousand, three hundred thirty-one".