253799790 has 32 divisors (see below), whose sum is σ = 628770816. Its totient is φ = 65496480.

The previous prime is 253799789. The next prime is 253799801. The reversal of 253799790 is 97997352.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135522 + ... + 137381.

It is an arithmetic number, because the mean of its divisors is an integer number (19649088).

Almost surely, 2^253799790 is an apocalyptic number.

253799790 is an abundant number, since it is smaller than the sum of its proper divisors (374971026).

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

253799790 is a wasteful number, since it uses less digits than its factorization.

253799790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272944.

The product of its (nonzero) digits is 1071630, while the sum is 51.

The square root of 253799790 is about 15931.0950659394. The cubic root of 253799790 is about 633.1361137231.

The spelling of 253799790 in words is "two hundred fifty-three million, seven hundred ninety-nine thousand, seven hundred ninety".