13269440 has 28 divisors (see below), whose sum is σ = 31598616. Its totient is φ = 5307648.

The previous prime is 13269439. The next prime is 13269511. The reversal of 13269440 is 4496231.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20414 + ... + 21053.

It is an arithmetic number, because the mean of its divisors is an integer number (1128522).

Almost surely, 2^13269440 is an apocalyptic number.

13269440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13269440 is an abundant number, since it is smaller than the sum of its proper divisors (18329176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13269440 is an equidigital number, since it uses as much as digits as its factorization.

13269440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41484 (or 41474 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 13269440 is about 3642.7242552793. The cubic root of 13269440 is about 236.7468440462.

The spelling of 13269440 in words is "thirteen million, two hundred sixty-nine thousand, four hundred forty".