252668 has 24 divisors (see below), whose sum is σ = 491568. Its totient is φ = 112896.

The previous prime is 252667. The next prime is 252691. The reversal of 252668 is 866252.

It is a super-2 number, since 2×252668² = 127682236448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 2292.

It is an arithmetic number, because the mean of its divisors is an integer number (20482).

2²⁵²⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

252668 is a deficient number, since it is larger than the sum of its proper divisors (238900).

252668 is a wasteful number, since it uses less digits than its factorization.

252668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 171 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 252668 is about 502.6609195074. The cubic root of 252668 is about 63.2193579541.

The spelling of 252668 in words is "two hundred fifty-two thousand, six hundred sixty-eight".