13383440 has 40 divisors (see below), whose sum is σ = 35563200. Its totient is φ = 4588416.

The previous prime is 13383431. The next prime is 13383463. The reversal of 13383440 is 4438331.

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

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, 11390 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (889080).

Almost surely, 2^13383440 is an apocalyptic number.

13383440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13383440 is an abundant number, since it is smaller than the sum of its proper divisors (22179760).

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

13383440 is a wasteful number, since it uses less digits than its factorization.

13383440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23919 (or 23913 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 13383440 is about 3658.3384206495. The cubic root of 13383440 is about 237.4228890940.

The spelling of 13383440 in words is "thirteen million, three hundred eighty-three thousand, four hundred forty".