260455720 has 32 divisors (see below), whose sum is σ = 669744000. Its totient is φ = 89299008.

The previous prime is 260455709. The next prime is 260455721. The reversal of 260455720 is 27554062.

260455720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (260455721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464820 + ... + 465379.

It is an arithmetic number, because the mean of its divisors is an integer number (20929500).

Almost surely, 2^260455720 is an apocalyptic number.

260455720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260455720 is an abundant number, since it is smaller than the sum of its proper divisors (409288280).

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

260455720 is a wasteful number, since it uses less digits than its factorization.

260455720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930217 (or 930213 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 260455720 is about 16138.6405871127. The cubic root of 260455720 is about 638.6231141326.

The spelling of 260455720 in words is "two hundred sixty million, four hundred fifty-five thousand, seven hundred twenty".