253840074 has 32 divisors (see below), whose sum is σ = 526176000. Its totient is φ = 81541824.

The previous prime is 253840043. The next prime is 253840109. The reversal of 253840074 is 470048352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124092 + ... + 126120.

It is an arithmetic number, because the mean of its divisors is an integer number (16443000).

Almost surely, 2^253840074 is an apocalyptic number.

253840074 is an abundant number, since it is smaller than the sum of its proper divisors (272335926).

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

253840074 is a wasteful number, since it uses less digits than its factorization.

253840074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 253840074 is about 15932.3593356414. The cubic root of 253840074 is about 633.1696098185.

The spelling of 253840074 in words is "two hundred fifty-three million, eight hundred forty thousand, seventy-four".