13649318 has 12 divisors (see below), whose sum is σ = 20966868. Its totient is φ = 6664140.

The previous prime is 13649303. The next prime is 13649341. The reversal of 13649318 is 81394631.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1853 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (1747239).

Almost surely, 2^13649318 is an apocalyptic number.

13649318 is a deficient number, since it is larger than the sum of its proper divisors (7317550).

13649318 is an equidigital number, since it uses as much as digits as its factorization.

13649318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779 (or 3736 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 13649318 is about 3694.4983421298. The cubic root of 13649318 is about 238.9848207303.

The spelling of 13649318 in words is "thirteen million, six hundred forty-nine thousand, three hundred eighteen".