261260344 has 16 divisors (see below), whose sum is σ = 490089600. Its totient is φ = 130569792.

The previous prime is 261260341. The next prime is 261260359. The reversal of 261260344 is 443062162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261260341) 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, 14697 + ... + 27175.

It is an arithmetic number, because the mean of its divisors is an integer number (30630600).

Almost surely, 2^261260344 is an apocalyptic number.

It is an amenable number.

261260344 is a deficient number, since it is larger than the sum of its proper divisors (228829256).

261260344 is a wasteful number, since it uses less digits than its factorization.

261260344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15102 (or 15098 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 261260344 is about 16163.5498576272. The cubic root of 261260344 is about 639.2800693660.

The spelling of 261260344 in words is "two hundred sixty-one million, two hundred sixty thousand, three hundred forty-four".