253438464 has 40 divisors (see below), whose sum is σ = 675180000. Its totient is φ = 84478976.

The previous prime is 253438459. The next prime is 253438481. The reversal of 253438464 is 464834352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80964 + ... + 84035.

It is an arithmetic number, because the mean of its divisors is an integer number (16879500).

Almost surely, 2^253438464 is an apocalyptic number.

253438464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253438464 is an abundant number, since it is smaller than the sum of its proper divisors (421741536).

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

253438464 is an equidigital number, since it uses as much as digits as its factorization.

253438464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165020 (or 165004 counting only the distinct ones).

The product of its digits is 276480, while the sum is 39.

The square root of 253438464 is about 15919.7507518177. The cubic root of 253438464 is about 632.8355130165.

The spelling of 253438464 in words is "two hundred fifty-three million, four hundred thirty-eight thousand, four hundred sixty-four".