12620406 has 16 divisors (see below), whose sum is σ = 25382448. Its totient is φ = 4183200.

The previous prime is 12620401. The next prime is 12620407. The reversal of 12620406 is 60402621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4725 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (1586403).

Almost surely, 2^12620406 is an apocalyptic number.

12620406 is an abundant number, since it is smaller than the sum of its proper divisors (12762042).

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

12620406 is a wasteful number, since it uses less digits than its factorization.

12620406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11807.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12620406 is about 3552.5210766440. The cubic root of 12620406 is about 232.8222286612.

The spelling of 12620406 in words is "twelve million, six hundred twenty thousand, four hundred six".