13020308 has 12 divisors (see below), whose sum is σ = 26040672. Its totient is φ = 5580120.

The previous prime is 13020307. The next prime is 13020331. The reversal of 13020308 is 80302031.

13020308 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020307) 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, 232478 + ... + 232533.

It is an arithmetic number, because the mean of its divisors is an integer number (2170056).

Almost surely, 2^13020308 is an apocalyptic number.

It is an amenable number.

13020308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13020308 is a wasteful number, since it uses less digits than its factorization.

13020308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465022 (or 465020 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13020308 is about 3608.3663893790. The cubic root of 13020308 is about 235.2558432891.

Adding to 13020308 its reverse (80302031), we get a palindrome (93322339).

The spelling of 13020308 in words is "thirteen million, twenty thousand, three hundred eight".