12878424 has 48 divisors (see below), whose sum is σ = 37564800. Its totient is φ = 3962304.

The previous prime is 12878377. The next prime is 12878431. The reversal of 12878424 is 42487821.

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

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, 5944 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (782600).

Almost surely, 2^12878424 is an apocalyptic number.

It is an amenable number.

12878424 is an abundant number, since it is smaller than the sum of its proper divisors (24686376).

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

12878424 is a wasteful number, since it uses less digits than its factorization.

12878424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13784 (or 13777 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 12878424 is about 3588.6521146525. The cubic root of 12878424 is about 234.3981824536.

The spelling of 12878424 in words is "twelve million, eight hundred seventy-eight thousand, four hundred twenty-four".