260135540 has 48 divisors (see below), whose sum is σ = 633666432. Its totient is φ = 87854976.

The previous prime is 260135531. The next prime is 260135569. The reversal of 260135540 is 45531062.

260135540 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 is a congruent 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, 4487 + ... + 23246.

It is an arithmetic number, because the mean of its divisors is an integer number (13201384).

Almost surely, 2^260135540 is an apocalyptic number.

260135540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260135540 is an abundant number, since it is smaller than the sum of its proper divisors (373530892).

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

260135540 is a wasteful number, since it uses less digits than its factorization.

260135540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27816 (or 27814 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 260135540 is about 16128.7178659681. The cubic root of 260135540 is about 638.3613189054.

The spelling of 260135540 in words is "two hundred sixty million, one hundred thirty-five thousand, five hundred forty".