12798420 has 24 divisors (see below), whose sum is σ = 35835744. Its totient is φ = 3412896.

The previous prime is 12798413. The next prime is 12798421. The reversal of 12798420 is 2489721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12798421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106594 + ... + 106713.

It is an arithmetic number, because the mean of its divisors is an integer number (1493156).

Almost surely, 2^12798420 is an apocalyptic number.

12798420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12798420 is an abundant number, since it is smaller than the sum of its proper divisors (23037324).

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

12798420 is a wasteful number, since it uses less digits than its factorization.

12798420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213319 (or 213317 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12798420 is about 3577.4879454724. The cubic root of 12798420 is about 233.9117937693.

The spelling of 12798420 in words is "twelve million, seven hundred ninety-eight thousand, four hundred twenty".