253909074 has 32 divisors (see below), whose sum is σ = 514195776. Its totient is φ = 83578880.

The previous prime is 253909031. The next prime is 253909099. The reversal of 253909074 is 470909352.

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, 395794 + ... + 396434.

It is an arithmetic number, because the mean of its divisors is an integer number (16068618).

Almost surely, 2^253909074 is an apocalyptic number.

253909074 is an abundant number, since it is smaller than the sum of its proper divisors (260286702).

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

253909074 is a wasteful number, since it uses less digits than its factorization.

253909074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 253909074 is about 15934.5245928456. The cubic root of 253909074 is about 633.2269749991.

The spelling of 253909074 in words is "two hundred fifty-three million, nine hundred nine thousand, seventy-four".