260406860 has 48 divisors (see below), whose sum is σ = 629584704. Its totient is φ = 88624128.

The previous prime is 260406857. The next prime is 260406871. The reversal of 260406860 is 68604062.

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, 12392 + ... + 25968.

It is an arithmetic number, because the mean of its divisors is an integer number (13116348).

Almost surely, 2^260406860 is an apocalyptic number.

260406860 is a gapful number since it is divisible by the number (20) 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 260406860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314792352).

260406860 is an abundant number, since it is smaller than the sum of its proper divisors (369177844).

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

260406860 is a wasteful number, since it uses less digits than its factorization.

260406860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13730 (or 13728 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 260406860 is about 16137.1267578835. The cubic root of 260406860 is about 638.5831776234.

The spelling of 260406860 in words is "two hundred sixty million, four hundred six thousand, eight hundred sixty".