232561040 has 20 divisors (see below), whose sum is σ = 540704604. Its totient is φ = 93024384.

The previous prime is 232561033. The next prime is 232561051. The reversal of 232561040 is 40165232.

232561040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 87310336 + 145250704 = 9344^2 + 12052^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 232560997 and 232561015.

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, 1453427 + ... + 1453586.

Almost surely, 2^232561040 is an apocalyptic number.

232561040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232561040 is an abundant number, since it is smaller than the sum of its proper divisors (308143564).

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

232561040 is a wasteful number, since it uses less digits than its factorization.

232561040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907026 (or 2907020 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 232561040 is about 15249.9521310724. The cubic root of 232561040 is about 614.9582803788.

The spelling of 232561040 in words is "two hundred thirty-two million, five hundred sixty-one thousand, forty".