13620308 has 24 divisors (see below), whose sum is σ = 25928448. Its totient is φ = 6222816.

The previous prime is 13620287. The next prime is 13620317. The reversal of 13620308 is 80302631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4085 + ... + 6627.

It is an arithmetic number, because the mean of its divisors is an integer number (1080352).

Almost surely, 2^13620308 is an apocalyptic number.

It is an amenable number.

13620308 is a deficient number, since it is larger than the sum of its proper divisors (12308140).

13620308 is a wasteful number, since it uses less digits than its factorization.

13620308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2661 counting only the distinct ones).

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

The square root of 13620308 is about 3690.5701456550. The cubic root of 13620308 is about 238.8153893790.

Adding to 13620308 its reverse (80302631), we get a palindrome (93922939).

The spelling of 13620308 in words is "thirteen million, six hundred twenty thousand, three hundred eight".