261105044 has 12 divisors (see below), whose sum is σ = 457052064. Its totient is φ = 130518744.

The previous prime is 261105043. The next prime is 261105059. The reversal of 261105044 is 440501162.

261105044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261105043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18497 + ... + 29399.

It is an arithmetic number, because the mean of its divisors is an integer number (38087672).

Almost surely, 2^261105044 is an apocalyptic number.

It is an amenable number.

261105044 is a deficient number, since it is larger than the sum of its proper divisors (195947020).

261105044 is a wasteful number, since it uses less digits than its factorization.

261105044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16894 (or 16892 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 261105044 is about 16158.7451245448. The cubic root of 261105044 is about 639.1533759799.

The spelling of 261105044 in words is "two hundred sixty-one million, one hundred five thousand, forty-four".