260856240 has 40 divisors (see below), whose sum is σ = 808655088. Its totient is φ = 69561600.

The previous prime is 260856223. The next prime is 260856283. The reversal of 260856240 is 42658062.

260856240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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, 543211 + ... + 543690.

Almost surely, 2^260856240 is an apocalyptic number.

260856240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260856240 is an abundant number, since it is smaller than the sum of its proper divisors (547798848).

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

260856240 is a wasteful number, since it uses less digits than its factorization.

260856240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086917 (or 1086911 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 260856240 is about 16151.0445482637. The cubic root of 260856240 is about 638.9502974902.

The spelling of 260856240 in words is "two hundred sixty million, eight hundred fifty-six thousand, two hundred forty".