253886730 has 32 divisors (see below), whose sum is σ = 615368448. Its totient is φ = 67032000.

The previous prime is 253886729. The next prime is 253886753. The reversal of 253886730 is 37688352.

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, 38866 + ... + 44925.

It is an arithmetic number, because the mean of its divisors is an integer number (19230264).

Almost surely, 2^253886730 is an apocalyptic number.

253886730 is an abundant number, since it is smaller than the sum of its proper divisors (361481718).

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

253886730 is a wasteful number, since it uses less digits than its factorization.

253886730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83902.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 253886730 is about 15933.8234582915. The cubic root of 253886730 is about 633.2083997951.

The spelling of 253886730 in words is "two hundred fifty-three million, eight hundred eighty-six thousand, seven hundred thirty".