260609880 has 32 divisors (see below), whose sum is σ = 781830000. Its totient is φ = 69495936.

The previous prime is 260609837. The next prime is 260609897. The reversal of 260609880 is 88906062.

260609880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×260609880² = 135835019107228800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085755 + ... + 1085994.

Almost surely, 2^260609880 is an apocalyptic number.

260609880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260609880 is an abundant number, since it is smaller than the sum of its proper divisors (521220120).

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

260609880 is a wasteful number, since it uses less digits than its factorization.

260609880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171763 (or 2171759 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 260609880 is about 16143.4159953834. The cubic root of 260609880 is about 638.7490865652.

The spelling of 260609880 in words is "two hundred sixty million, six hundred nine thousand, eight hundred eighty".