13645308 has 12 divisors (see below), whose sum is σ = 31839080. Its totient is φ = 4548432.

The previous prime is 13645259. The next prime is 13645321. The reversal of 13645308 is 80354631.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 568543 + ... + 568566.

Almost surely, 2^13645308 is an apocalyptic number.

It is an amenable number.

13645308 is an abundant number, since it is smaller than the sum of its proper divisors (18193772).

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

13645308 is a wasteful number, since it uses less digits than its factorization.

13645308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137116 (or 1137114 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 13645308 is about 3693.9556034149. The cubic root of 13645308 is about 238.9614148479.

Adding to 13645308 its reverse (80354631), we get a palindrome (93999939).

The spelling of 13645308 in words is "thirteen million, six hundred forty-five thousand, three hundred eight".