260387540 has 24 divisors (see below), whose sum is σ = 624930432. Its totient is φ = 89275680.

The previous prime is 260387513. The next prime is 260387557. The reversal of 260387540 is 45783062.

It is a happy number.

260387540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 260387540.

It is a congruent number.

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, 929816 + ... + 930095.

It is an arithmetic number, because the mean of its divisors is an integer number (26038768).

Almost surely, 2^260387540 is an apocalyptic number.

260387540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260387540 is an abundant number, since it is smaller than the sum of its proper divisors (364542892).

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

260387540 is a wasteful number, since it uses less digits than its factorization.

260387540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859927 (or 1859925 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 260387540 is about 16136.5281272026. The cubic root of 260387540 is about 638.5673847316.

The spelling of 260387540 in words is "two hundred sixty million, three hundred eighty-seven thousand, five hundred forty".