13366940 has 12 divisors (see below), whose sum is σ = 28070616. Its totient is φ = 5346768.

The previous prime is 13366919. The next prime is 13366949. The reversal of 13366940 is 4966331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13366897 and 13366906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13366949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334154 + ... + 334193.

It is an arithmetic number, because the mean of its divisors is an integer number (2339218).

Almost surely, 2^13366940 is an apocalyptic number.

13366940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13366940 is an abundant number, since it is smaller than the sum of its proper divisors (14703676).

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

13366940 is a wasteful number, since it uses less digits than its factorization.

13366940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668356 (or 668354 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 13366940 is about 3656.0826030056. The cubic root of 13366940 is about 237.3252786968.

The spelling of 13366940 in words is "thirteen million, three hundred sixty-six thousand, nine hundred forty".