261265832 has 64 divisors (see below), whose sum is σ = 529390080. Its totient is φ = 120586752.

The previous prime is 261265793. The next prime is 261265841. The reversal of 261265832 is 238562162.

261265832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 261265792 and 261265801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711713 + ... + 712079.

It is an arithmetic number, because the mean of its divisors is an integer number (8271720).

Almost surely, 2^261265832 is an apocalyptic number.

It is an amenable number.

261265832 is an abundant number, since it is smaller than the sum of its proper divisors (268124248).

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

261265832 is a wasteful number, since it uses less digits than its factorization.

261265832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 518 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 261265832 is about 16163.7196214238. The cubic root of 261265832 is about 639.2845455453.

The spelling of 261265832 in words is "two hundred sixty-one million, two hundred sixty-five thousand, eight hundred thirty-two".