252440099 has 16 divisors (see below), whose sum is σ = 283776000. Its totient is φ = 223443360.

The previous prime is 252440081. The next prime is 252440141. The reversal of 252440099 is 990044252.

It is a cyclic number.

It is not a de Polignac number, because 252440099 - 2⁸ = 252439843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252440009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9692 + ... + 24470.

It is an arithmetic number, because the mean of its divisors is an integer number (17736000).

Almost surely, 2^252440099 is an apocalyptic number.

252440099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

252440099 is a deficient number, since it is larger than the sum of its proper divisors (31335901).

252440099 is a wasteful number, since it uses less digits than its factorization.

252440099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14858.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 252440099 is about 15888.3636350632. The cubic root of 252440099 is about 632.0034474455.

The spelling of 252440099 in words is "two hundred fifty-two million, four hundred forty thousand, ninety-nine".