13369749 has 16 divisors (see below), whose sum is σ = 18892800. Its totient is φ = 8386416.

The previous prime is 13369747. The next prime is 13369753. The reversal of 13369749 is 94796331.

It is not a de Polignac number, because 13369749 - 2¹ = 13369747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13369749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13369747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8572 + ... + 10010.

It is an arithmetic number, because the mean of its divisors is an integer number (1180800).

Almost surely, 2^13369749 is an apocalyptic number.

13369749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13369749 is a deficient number, since it is larger than the sum of its proper divisors (5523051).

13369749 is a wasteful number, since it uses less digits than its factorization.

13369749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624.

The product of its digits is 122472, while the sum is 42.

The square root of 13369749 is about 3656.4667371658. The cubic root of 13369749 is about 237.3419017986.

The spelling of 13369749 in words is "thirteen million, three hundred sixty-nine thousand, seven hundred forty-nine".