12406920 has 32 divisors (see below), whose sum is σ = 37221120. Its totient is φ = 3308480.

The previous prime is 12406907. The next prime is 12406937. The reversal of 12406920 is 2960421.

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

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, 51576 + ... + 51815.

It is an arithmetic number, because the mean of its divisors is an integer number (1163160).

Almost surely, 2^12406920 is an apocalyptic number.

12406920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12406920 is an abundant number, since it is smaller than the sum of its proper divisors (24814200).

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

12406920 is a wasteful number, since it uses less digits than its factorization.

12406920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103405 (or 103401 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12406920 is about 3522.3458092584. The cubic root of 12406920 is about 231.5019537797.

The spelling of 12406920 in words is "twelve million, four hundred six thousand, nine hundred twenty".