13400269 has 4 divisors (see below), whose sum is σ = 13409820. Its totient is φ = 13390720.

The previous prime is 13400251. The next prime is 13400273. The reversal of 13400269 is 96200431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3553225 + 9847044 = 1885^2 + 3138^2 .

It is a cyclic number.

It is not a de Polignac number, because 13400269 - 2⁷ = 13400141 is a prime.

It is a super-2 number, since 2×13400269² = 359134418544722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212 + ... + 5629.

It is an arithmetic number, because the mean of its divisors is an integer number (3352455).

Almost surely, 2^13400269 is an apocalyptic number.

It is an amenable number.

13400269 is a deficient number, since it is larger than the sum of its proper divisors (9551).

13400269 is an equidigital number, since it uses as much as digits as its factorization.

13400269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13400269 is about 3660.6377859603. The cubic root of 13400269 is about 237.5223631758.

The spelling of 13400269 in words is "thirteen million, four hundred thousand, two hundred sixty-nine".