261160460 has 48 divisors (see below), whose sum is σ = 633497760. Its totient is φ = 89379840.

The previous prime is 261160391. The next prime is 261160481. The reversal of 261160460 is 64061162.

It is a happy number.

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, 31175 + ... + 38654.

It is an arithmetic number, because the mean of its divisors is an integer number (13197870).

Almost surely, 2^261160460 is an apocalyptic number.

261160460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261160460 is an abundant number, since it is smaller than the sum of its proper divisors (372337300).

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

261160460 is a wasteful number, since it uses less digits than its factorization.

261160460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69866 (or 69864 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 261160460 is about 16160.4597706872. The cubic root of 261160460 is about 639.1985899897.

The spelling of 261160460 in words is "two hundred sixty-one million, one hundred sixty thousand, four hundred sixty".