12870240 has 48 divisors (see below), whose sum is σ = 40542768. Its totient is φ = 3431936.

The previous prime is 12870233. The next prime is 12870259. The reversal of 12870240 is 4207821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12870240.

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, 12927 + ... + 13886.

It is an arithmetic number, because the mean of its divisors is an integer number (844641).

Almost surely, 2^12870240 is an apocalyptic number.

12870240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12870240 is an abundant number, since it is smaller than the sum of its proper divisors (27672528).

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

12870240 is a wasteful number, since it uses less digits than its factorization.

12870240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26831 (or 26823 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12870240 is about 3587.5116724549. The cubic root of 12870240 is about 234.3485200306.

The spelling of 12870240 in words is "twelve million, eight hundred seventy thousand, two hundred forty".