12642620 has 24 divisors (see below), whose sum is σ = 27052704. Its totient is φ = 4961216.

The previous prime is 12642613. The next prime is 12642631. The reversal of 12642620 is 2624621.

It is a congruent number.

It is an unprimeable number.

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, 4904 + ... + 7023.

It is an arithmetic number, because the mean of its divisors is an integer number (1127196).

Almost surely, 2^12642620 is an apocalyptic number.

12642620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12642620 is an abundant number, since it is smaller than the sum of its proper divisors (14410084).

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

12642620 is a wasteful number, since it uses less digits than its factorization.

12642620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11989 (or 11987 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12642620 is about 3555.6462141220. The cubic root of 12642620 is about 232.9587504571.

The spelling of 12642620 in words is "twelve million, six hundred forty-two thousand, six hundred twenty".