252440994 has 16 divisors (see below), whose sum is σ = 543719232. Its totient is φ = 77674128.

The previous prime is 252440989. The next prime is 252441001. The reversal of 252440994 is 499044252.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618134 + ... + 1618289.

It is an arithmetic number, because the mean of its divisors is an integer number (33982452).

Almost surely, 2^252440994 is an apocalyptic number.

252440994 is an abundant number, since it is smaller than the sum of its proper divisors (291278238).

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

252440994 is a wasteful number, since it uses less digits than its factorization.

252440994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236441.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 252440994 is about 15888.3918003050. The cubic root of 252440994 is about 632.0041943454.

The spelling of 252440994 in words is "two hundred fifty-two million, four hundred forty thousand, nine hundred ninety-four".