252386340 has 24 divisors (see below), whose sum is σ = 706681920. Its totient is φ = 67303008.

The previous prime is 252386311. The next prime is 252386363. The reversal of 252386340 is 43683252.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103160 + ... + 2103279.

It is an arithmetic number, because the mean of its divisors is an integer number (29445080).

Almost surely, 2^252386340 is an apocalyptic number.

252386340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252386340 is an abundant number, since it is smaller than the sum of its proper divisors (454295580).

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

252386340 is a wasteful number, since it uses less digits than its factorization.

252386340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206451 (or 4206449 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 252386340 is about 15886.6717722750. The cubic root of 252386340 is about 631.9585809795.

The spelling of 252386340 in words is "two hundred fifty-two million, three hundred eighty-six thousand, three hundred forty".