13420620 has 96 divisors (see below), whose sum is σ = 43243200. Its totient is φ = 3451392.

The previous prime is 13420619. The next prime is 13420637. The reversal of 13420620 is 2602431.

It is a happy number.

13420620 is a `hidden beast` number, since 1 + 3 + 42 + 0 + 620 = 666.

It is a super-2 number, since 2×13420620² = 360226082368800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13420593 and 13420602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15232 + ... + 16088.

It is an arithmetic number, because the mean of its divisors is an integer number (450450).

Almost surely, 2^13420620 is an apocalyptic number.

13420620 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 13420620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21621600).

13420620 is an abundant number, since it is smaller than the sum of its proper divisors (29822580).

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

13420620 is a wasteful number, since it uses less digits than its factorization.

13420620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13420620 is about 3663.4164382445. The cubic root of 13420620 is about 237.6425441621.

The spelling of 13420620 in words is "thirteen million, four hundred twenty thousand, six hundred twenty".