253684172 has 24 divisors (see below), whose sum is σ = 517725600. Its totient is φ = 108721200.

The previous prime is 253684169. The next prime is 253684187. The reversal of 253684172 is 271486352.

It is a happy number.

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, 91079 + ... + 93822.

It is an arithmetic number, because the mean of its divisors is an integer number (21571900).

Almost surely, 2^253684172 is an apocalyptic number.

It is an amenable number.

253684172 is an abundant number, since it is smaller than the sum of its proper divisors (264041428).

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

253684172 is a wasteful number, since it uses less digits than its factorization.

253684172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184926 (or 184910 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 253684172 is about 15927.4659629208. The cubic root of 253684172 is about 633.0399578126.

The spelling of 253684172 in words is "two hundred fifty-three million, six hundred eighty-four thousand, one hundred seventy-two".