260931216 has 320 divisors, whose sum is σ = 895942656. Its totient is φ = 63590400.

The previous prime is 260931173. The next prime is 260931227. The reversal of 260931216 is 612139062.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5551705 + ... + 5551751.

Almost surely, 2^260931216 is an apocalyptic number.

260931216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260931216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447971328).

260931216 is an abundant number, since it is smaller than the sum of its proper divisors (635011440).

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

260931216 is a wasteful number, since it uses less digits than its factorization.

260931216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 260931216 is about 16153.3654697713. The cubic root of 260931216 is about 639.0115078954.

The spelling of 260931216 in words is "two hundred sixty million, nine hundred thirty-one thousand, two hundred sixteen".