12622620 has 48 divisors (see below), whose sum is σ = 35804160. Its totient is φ = 3322176.

The previous prime is 12622609. The next prime is 12622633. The reversal of 12622620 is 2622621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3409 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (745920).

Almost surely, 2^12622620 is an apocalyptic number.

12622620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12622620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17902080).

12622620 is an abundant number, since it is smaller than the sum of its proper divisors (23181540).

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

12622620 is a wasteful number, since it uses less digits than its factorization.

12622620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754 (or 2752 counting only the distinct ones).

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

The square root of 12622620 is about 3552.8326726712. The cubic root of 12622620 is about 232.8358425464.

Subtracting from 12622620 its reverse (2622621), we obtain a palindrome (9999999).

The spelling of 12622620 in words is "twelve million, six hundred twenty-two thousand, six hundred twenty".