260784540 has 36 divisors (see below), whose sum is σ = 791046984. Its totient is φ = 69542496.

The previous prime is 260784533. The next prime is 260784553. The reversal of 260784540 is 45487062.

260784540 is a `hidden beast` number, since 2 + 607 + 8 + 4 + 5 + 40 = 666.

260784540 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 (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 260784495 and 260784504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724222 + ... + 724581.

Almost surely, 2^260784540 is an apocalyptic number.

260784540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260784540 is an abundant number, since it is smaller than the sum of its proper divisors (530262444).

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

260784540 is a wasteful number, since it uses less digits than its factorization.

260784540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448818 (or 1448813 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 260784540 is about 16148.8247250380. The cubic root of 260784540 is about 638.8917506390.

The spelling of 260784540 in words is "two hundred sixty million, seven hundred eighty-four thousand, five hundred forty".