252491982 has 16 divisors (see below), whose sum is σ = 505608912. Its totient is φ = 84059840.

The previous prime is 252491933. The next prime is 252491983. The reversal of 252491982 is 289194252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252491983) 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, 20703 + ... + 30554.

It is an arithmetic number, because the mean of its divisors is an integer number (31600557).

Almost surely, 2^252491982 is an apocalyptic number.

252491982 is an abundant number, since it is smaller than the sum of its proper divisors (253116930).

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

252491982 is a wasteful number, since it uses less digits than its factorization.

252491982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52083.

The product of its digits is 103680, while the sum is 42.

The square root of 252491982 is about 15889.9962869725. The cubic root of 252491982 is about 632.0467421900.

The spelling of 252491982 in words is "two hundred fifty-two million, four hundred ninety-one thousand, nine hundred eighty-two".