252438307 has 12 divisors (see below), whose sum is σ = 281284360. Its totient is φ = 226337760.

The previous prime is 252438293. The next prime is 252438371. The reversal of 252438307 is 703834252.

It is not a de Polignac number, because 252438307 - 2¹⁵ = 252405539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252438377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5457 + ... + 23122.

Almost surely, 2^252438307 is an apocalyptic number.

252438307 is a deficient number, since it is larger than the sum of its proper divisors (28846053).

252438307 is a wasteful number, since it uses less digits than its factorization.

252438307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28674 (or 28663 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 252438307 is about 15888.3072414905. The cubic root of 252438307 is about 632.0019519715.

The spelling of 252438307 in words is "two hundred fifty-two million, four hundred thirty-eight thousand, three hundred seven".