13649188 has 12 divisors (see below), whose sum is σ = 27298432. Its totient is φ = 5849640.

The previous prime is 13649183. The next prime is 13649191. The reversal of 13649188 is 88194631.

13649188 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13649188.

It is not an unprimeable number, because it can be changed into a prime (13649183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243708 + ... + 243763.

Almost surely, 2^13649188 is an apocalyptic number.

It is an amenable number.

13649188 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.

13649188 is a wasteful number, since it uses less digits than its factorization.

13649188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487482 (or 487480 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 13649188 is about 3694.4807483596. The cubic root of 13649188 is about 238.9840620080.

The spelling of 13649188 in words is "thirteen million, six hundred forty-nine thousand, one hundred eighty-eight".