260807720 has 16 divisors (see below), whose sum is σ = 586817460. Its totient is φ = 104323072.

The previous prime is 260807719. The next prime is 260807749. The reversal of 260807720 is 27708062.

260807720 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 244046884 + 16760836 = 15622^2 + 4094^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3260057 + ... + 3260136.

Almost surely, 2^260807720 is an apocalyptic number.

260807720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260807720 is an abundant number, since it is smaller than the sum of its proper divisors (326009740).

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

260807720 is a wasteful number, since it uses less digits than its factorization.

260807720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520204 (or 6520200 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 260807720 is about 16149.5424083780. The cubic root of 260807720 is about 638.9106795116.

The spelling of 260807720 in words is "two hundred sixty million, eight hundred seven thousand, seven hundred twenty".