253443992 has 32 divisors (see below), whose sum is σ = 512978400. Its totient is φ = 117030144.

The previous prime is 253443991. The next prime is 253444013. The reversal of 253443992 is 299344352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253443991) by changing a digit.

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, 18413 + ... + 29084.

It is an arithmetic number, because the mean of its divisors is an integer number (16030575).

Almost surely, 2^253443992 is an apocalyptic number.

It is an amenable number.

253443992 is an abundant number, since it is smaller than the sum of its proper divisors (259534408).

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

253443992 is a wasteful number, since it uses less digits than its factorization.

253443992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47555 (or 47551 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 253443992 is about 15919.9243716797. The cubic root of 253443992 is about 632.8401141193.

The spelling of 253443992 in words is "two hundred fifty-three million, four hundred forty-three thousand, nine hundred ninety-two".