259920432 has 30 divisors (see below), whose sum is σ = 727416612. Its totient is φ = 86640096.

The previous prime is 259920413. The next prime is 259920439. The reversal of 259920432 is 234029952.

259920432 is a `hidden beast` number, since 2 + 599 + 20 + 43 + 2 = 666.

259920432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (259920439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 902358 + ... + 902645.

Almost surely, 2^259920432 is an apocalyptic number.

It is an amenable number.

259920432 is an abundant number, since it is smaller than the sum of its proper divisors (467496180).

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

259920432 is a wasteful number, since it uses less digits than its factorization.

259920432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805017 (or 1805008 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 259920432 is about 16122.0480088604. The cubic root of 259920432 is about 638.1853151532.

The spelling of 259920432 in words is "two hundred fifty-nine million, nine hundred twenty thousand, four hundred thirty-two".