12492840 has 32 divisors (see below), whose sum is σ = 37478880. Its totient is φ = 3331392.

The previous prime is 12492839. The next prime is 12492853. The reversal of 12492840 is 4829421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12492798 and 12492807.

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, 51934 + ... + 52173.

It is an arithmetic number, because the mean of its divisors is an integer number (1171215).

Almost surely, 2^12492840 is an apocalyptic number.

12492840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12492840 is an abundant number, since it is smaller than the sum of its proper divisors (24986040).

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

12492840 is a wasteful number, since it uses less digits than its factorization.

12492840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104121 (or 104117 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12492840 is about 3534.5211839795. The cubic root of 12492840 is about 232.0351215160.

The spelling of 12492840 in words is "twelve million, four hundred ninety-two thousand, eight hundred forty".