252602440 has 32 divisors (see below), whose sum is σ = 580452480. Its totient is φ = 98890432.

The previous prime is 252602419. The next prime is 252602447. The reversal of 252602440 is 44206252.

It is not an unprimeable number, because it can be changed into a prime (252602447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65302 + ... + 69061.

It is an arithmetic number, because the mean of its divisors is an integer number (18139140).

Almost surely, 2^252602440 is an apocalyptic number.

252602440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252602440 is an abundant number, since it is smaller than the sum of its proper divisors (327850040).

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

252602440 is a wasteful number, since it uses less digits than its factorization.

252602440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134421 (or 134417 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 252602440 is about 15893.4716157295. The cubic root of 252602440 is about 632.1388961934.

Adding to 252602440 its reverse (44206252), we get a palindrome (296808692).

The spelling of 252602440 in words is "two hundred fifty-two million, six hundred two thousand, four hundred forty".