253478632 has 32 divisors (see below), whose sum is σ = 527277600. Its totient is φ = 113262400.

The previous prime is 253478629. The next prime is 253478663. The reversal of 253478632 is 236874352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19219 + ... + 29602.

It is an arithmetic number, because the mean of its divisors is an integer number (16477425).

Almost surely, 2^253478632 is an apocalyptic number.

253478632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

253478632 is an abundant number, since it is smaller than the sum of its proper divisors (273798968).

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

253478632 is a wasteful number, since it uses less digits than its factorization.

253478632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48897 (or 48893 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 253478632 is about 15921.0122793747. The cubic root of 253478632 is about 632.8689443981.

The spelling of 253478632 in words is "two hundred fifty-three million, four hundred seventy-eight thousand, six hundred thirty-two".