13622620 has 48 divisors (see below), whose sum is σ = 32860800. Its totient is φ = 4691520.

The previous prime is 13622597. The next prime is 13622633. The reversal of 13622620 is 2622631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13622591 and 13622600.

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, 2551 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (684600).

Almost surely, 2^13622620 is an apocalyptic number.

13622620 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 13622620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16430400).

13622620 is an abundant number, since it is smaller than the sum of its proper divisors (19238180).

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

13622620 is a wasteful number, since it uses less digits than its factorization.

13622620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298 (or 3296 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 13622620 is about 3690.8833630989. The cubic root of 13622620 is about 238.8289013089.

The spelling of 13622620 in words is "thirteen million, six hundred twenty-two thousand, six hundred twenty".