253686874 has 16 divisors (see below), whose sum is σ = 446646528. Its totient is φ = 105784272.

The previous prime is 253686863. The next prime is 253686889. The reversal of 253686874 is 478686352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244354 + ... + 245389.

It is an arithmetic number, because the mean of its divisors is an integer number (27915408).

Almost surely, 2^253686874 is an apocalyptic number.

253686874 is a deficient number, since it is larger than the sum of its proper divisors (192959654).

253686874 is a wasteful number, since it uses less digits than its factorization.

253686874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489789.

The product of its digits is 1935360, while the sum is 49.

The square root of 253686874 is about 15927.5507847252. The cubic root of 253686874 is about 633.0422053157.

The spelling of 253686874 in words is "two hundred fifty-three million, six hundred eighty-six thousand, eight hundred seventy-four".