13649808 has 40 divisors (see below), whose sum is σ = 35464000. Its totient is φ = 4523904.

The previous prime is 13649803. The next prime is 13649813. The reversal of 13649808 is 80894631.

It is an interprime number because it is at equal distance from previous prime (13649803) and next prime (13649813).

It is not an unprimeable number, because it can be changed into a prime (13649803) 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, 8838 + ... + 10266.

It is an arithmetic number, because the mean of its divisors is an integer number (886600).

Almost surely, 2^13649808 is an apocalyptic number.

It is an amenable number.

13649808 is an abundant number, since it is smaller than the sum of its proper divisors (21814192).

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

13649808 is a wasteful number, since it uses less digits than its factorization.

13649808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 13649808 is about 3694.5646563567. The cubic root of 13649808 is about 238.9876804864.

The spelling of 13649808 in words is "thirteen million, six hundred forty-nine thousand, eight hundred eight".