253446432 has 24 divisors (see below), whose sum is σ = 665297136. Its totient is φ = 84482112.

The previous prime is 253446397. The next prime is 253446443. The reversal of 253446432 is 234644352.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 253446393 and 253446402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319938 + ... + 1320129.

It is an arithmetic number, because the mean of its divisors is an integer number (27720714).

Almost surely, 2^253446432 is an apocalyptic number.

It is an amenable number.

253446432 is an abundant number, since it is smaller than the sum of its proper divisors (411850704).

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

253446432 is a wasteful number, since it uses less digits than its factorization.

253446432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640080 (or 2640072 counting only the distinct ones).

The product of its digits is 69120, while the sum is 33.

The square root of 253446432 is about 15920.0010050251. The cubic root of 253446432 is about 632.8421449755.

The spelling of 253446432 in words is "two hundred fifty-three million, four hundred forty-six thousand, four hundred thirty-two".