13730949 has 12 divisors (see below), whose sum is σ = 20517900. Its totient is φ = 8838144.

The previous prime is 13730929. The next prime is 13730971. The reversal of 13730949 is 94903731.

It can be written as a sum of positive squares in 2 ways, for example, as 10692900 + 3038049 = 3270^2 + 1743^2 .

It is not a de Polignac number, because 13730949 - 2⁸ = 13730693 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13730929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26044 + ... + 26565.

It is an arithmetic number, because the mean of its divisors is an integer number (1709825).

Almost surely, 2^13730949 is an apocalyptic number.

It is an amenable number.

13730949 is a deficient number, since it is larger than the sum of its proper divisors (6786951).

13730949 is a wasteful number, since it uses less digits than its factorization.

13730949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52644 (or 52641 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13730949 is about 3705.5295168167. The cubic root of 13730949 is about 239.4602976655.

The spelling of 13730949 in words is "thirteen million, seven hundred thirty thousand, nine hundred forty-nine".