252648290 has 32 divisors (see below), whose sum is σ = 477506880. Its totient is φ = 96110784.

The previous prime is 252648289. The next prime is 252648299. The reversal of 252648290 is 92846252.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (252648299) 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, 12929 + ... + 25931.

It is an arithmetic number, because the mean of its divisors is an integer number (14922090).

Almost surely, 2^252648290 is an apocalyptic number.

252648290 is a deficient number, since it is larger than the sum of its proper divisors (224858590).

252648290 is a wasteful number, since it uses less digits than its factorization.

252648290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 252648290 is about 15894.9139664233. The cubic root of 252648290 is about 632.1771404993.

The spelling of 252648290 in words is "two hundred fifty-two million, six hundred forty-eight thousand, two hundred ninety".