13308308 has 24 divisors (see below), whose sum is σ = 25762632. Its totient is φ = 5975424.

The previous prime is 13308301. The next prime is 13308319. The reversal of 13308308 is 80380331.

It can be written as a sum of positive squares in 4 ways, for example, as 3055504 + 10252804 = 1748^2 + 3202^2 .

It is a super-2 number, since 2×13308308² = 354222123645728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13308301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535 + ... + 5382.

It is an arithmetic number, because the mean of its divisors is an integer number (1073443).

Almost surely, 2^13308308 is an apocalyptic number.

It is an amenable number.

13308308 is a deficient number, since it is larger than the sum of its proper divisors (12454324).

13308308 is a wasteful number, since it uses less digits than its factorization.

13308308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971 (or 6969 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13308308 is about 3648.0553723868. The cubic root of 13308308 is about 236.9777733196.

Adding to 13308308 its reverse (80380331), we get a palindrome (93688639).

It can be divided in two parts, 13 and 308308, that multiplied together give a palindrome (4008004).

The spelling of 13308308 in words is "thirteen million, three hundred eight thousand, three hundred eight".