13269840 has 40 divisors (see below), whose sum is σ = 41137248. Its totient is φ = 3538560.

The previous prime is 13269821. The next prime is 13269853. The reversal of 13269840 is 4896231.

13269840 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27406 + ... + 27885.

Almost surely, 2^13269840 is an apocalyptic number.

13269840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13269840 is an abundant number, since it is smaller than the sum of its proper divisors (27867408).

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

13269840 is a wasteful number, since it uses less digits than its factorization.

13269840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55307 (or 55301 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 13269840 is about 3642.7791588291. The cubic root of 13269840 is about 236.7492228903.

The spelling of 13269840 in words is "thirteen million, two hundred sixty-nine thousand, eight hundred forty".