252641492 has 12 divisors (see below), whose sum is σ = 442567860. Its totient is φ = 126193536.

The previous prime is 252641381. The next prime is 252641503. The reversal of 252641492 is 294146252.

It can be written as a sum of positive squares in 2 ways, for example, as 124634896 + 128006596 = 11164^2 + 11314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27263 + ... + 35334.

It is an arithmetic number, because the mean of its divisors is an integer number (36880655).

Almost surely, 2^252641492 is an apocalyptic number.

It is an amenable number.

252641492 is a deficient number, since it is larger than the sum of its proper divisors (189926368).

252641492 is a wasteful number, since it uses less digits than its factorization.

252641492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63610 (or 63608 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 252641492 is about 15894.7001229970. The cubic root of 252641492 is about 632.1714704579.

The spelling of 252641492 in words is "two hundred fifty-two million, six hundred forty-one thousand, four hundred ninety-two".