260013240 has 80 divisors (see below), whose sum is σ = 873944280. Its totient is φ = 69336000.

The previous prime is 260013223. The next prime is 260013251. The reversal of 260013240 is 42310062.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36886 + ... + 43365.

Almost surely, 2^260013240 is an apocalyptic number.

260013240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260013240 is an abundant number, since it is smaller than the sum of its proper divisors (613931040).

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

260013240 is a wasteful number, since it uses less digits than its factorization.

260013240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80274 (or 80261 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 260013240 is about 16124.9260463420. The cubic root of 260013240 is about 638.2612635940.

It can be divided in two parts, 26001 and 3240, that added together give a square (29241 = 171²).

The spelling of 260013240 in words is "two hundred sixty million, thirteen thousand, two hundred forty".