13415620 has 12 divisors (see below), whose sum is σ = 28172844. Its totient is φ = 5366240.

The previous prime is 13415617. The next prime is 13415627. The reversal of 13415620 is 2651431.

It can be written as a sum of positive squares in 2 ways, for example, as 4064256 + 9351364 = 2016^2 + 3058^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13415591 and 13415600.

It is not an unprimeable number, because it can be changed into a prime (13415627) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 335371 + ... + 335410.

It is an arithmetic number, because the mean of its divisors is an integer number (2347737).

Almost surely, 2^13415620 is an apocalyptic number.

13415620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13415620 is an abundant number, since it is smaller than the sum of its proper divisors (14757224).

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

13415620 is a wasteful number, since it uses less digits than its factorization.

13415620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670790 (or 670788 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13415620 is about 3662.7339515722. The cubic root of 13415620 is about 237.6130283794.

The spelling of 13415620 in words is "thirteen million, four hundred fifteen thousand, six hundred twenty".