13389040 has 40 divisors (see below), whose sum is σ = 35578080. Its totient is φ = 4590336.

The previous prime is 13389011. The next prime is 13389041. The reversal of 13389040 is 4098331.

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

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11395 + ... + 12514.

It is an arithmetic number, because the mean of its divisors is an integer number (889452).

Almost surely, 2^13389040 is an apocalyptic number.

13389040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13389040 is an abundant number, since it is smaller than the sum of its proper divisors (22189040).

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

13389040 is a wasteful number, since it uses less digits than its factorization.

13389040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23929 (or 23923 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13389040 is about 3659.1037153926. The cubic root of 13389040 is about 237.4559992355.

The spelling of 13389040 in words is "thirteen million, three hundred eighty-nine thousand, forty".