13616420 has 24 divisors (see below), whose sum is σ = 29065848. Its totient is φ = 5356800.

The previous prime is 13616413. The next prime is 13616431. The reversal of 13616420 is 2461631.

It is a happy number.

13616420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1183744 + 12432676 = 1088^2 + 3526^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4361 + ... + 6800.

It is an arithmetic number, because the mean of its divisors is an integer number (1211077).

Almost surely, 2^13616420 is an apocalyptic number.

13616420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13616420 is an abundant number, since it is smaller than the sum of its proper divisors (15449428).

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

13616420 is a wasteful number, since it uses less digits than its factorization.

13616420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11231 (or 11229 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13616420 is about 3690.0433601788. The cubic root of 13616420 is about 238.7926634466.

The spelling of 13616420 in words is "thirteen million, six hundred sixteen thousand, four hundred twenty".