260885730 has 128 divisors (see below), whose sum is σ = 740855808. Its totient is φ = 57560832.

The previous prime is 260885719. The next prime is 260885749. The reversal of 260885730 is 37588062.

It is a super-2 number, since 2×260885730² = 136122728235265800, which contains 22 as substring.

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, 1507924 + ... + 1508096.

It is an arithmetic number, because the mean of its divisors is an integer number (5787936).

Almost surely, 2^260885730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260885730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370427904).

260885730 is an abundant number, since it is smaller than the sum of its proper divisors (479970078).

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

260885730 is a wasteful number, since it uses less digits than its factorization.

260885730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 260885730 is about 16151.9574665116. The cubic root of 260885730 is about 638.9743745249.

The spelling of 260885730 in words is "two hundred sixty million, eight hundred eighty-five thousand, seven hundred thirty".