13939269 has 32 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 8312832.

The previous prime is 13939259. The next prime is 13939273. The reversal of 13939269 is 96293931.

It is a happy number.

It is not a de Polignac number, because 13939269 - 2¹⁹ = 13414981 is a prime.

It is a super-2 number, since 2×13939269² = 388606440508722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13939269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13939249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156577 + ... + 156665.

It is an arithmetic number, because the mean of its divisors is an integer number (646380).

Almost surely, 2^13939269 is an apocalyptic number.

It is an amenable number.

13939269 is a deficient number, since it is larger than the sum of its proper divisors (6744891).

13939269 is a wasteful number, since it uses less digits than its factorization.

13939269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229.

The product of its digits is 78732, while the sum is 42.

The square root of 13939269 is about 3733.5330452535. The cubic root of 13939269 is about 240.6652204427.

The spelling of 13939269 in words is "thirteen million, nine hundred thirty-nine thousand, two hundred sixty-nine".