13366749 has 24 divisors (see below), whose sum is σ = 20454336. Its totient is φ = 7744000.

The previous prime is 13366741. The next prime is 13366751. The reversal of 13366749 is 94766331.

13366749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13366749 - 2³ = 13366741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13366741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7549 + ... + 9149.

It is an arithmetic number, because the mean of its divisors is an integer number (852264).

Almost surely, 2^13366749 is an apocalyptic number.

It is an amenable number.

13366749 is a deficient number, since it is larger than the sum of its proper divisors (7087587).

13366749 is a wasteful number, since it uses less digits than its factorization.

13366749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1638 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 13366749 is about 3656.0564820582. The cubic root of 13366749 is about 237.3241483123.

The spelling of 13366749 in words is "thirteen million, three hundred sixty-six thousand, seven hundred forty-nine".