252990830 has 16 divisors (see below), whose sum is σ = 467691840. Its totient is φ = 98461152.

The previous prime is 252990817. The next prime is 252990839. The reversal of 252990830 is 38099252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252990839) 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, 341510 + ... + 342249.

It is an arithmetic number, because the mean of its divisors is an integer number (29230740).

Almost surely, 2^252990830 is an apocalyptic number.

252990830 is a deficient number, since it is larger than the sum of its proper divisors (214701010).

252990830 is a wasteful number, since it uses less digits than its factorization.

252990830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683803.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 252990830 is about 15905.6854614946. The cubic root of 252990830 is about 632.4627129409.

The spelling of 252990830 in words is "two hundred fifty-two million, nine hundred ninety thousand, eight hundred thirty".