13390140 has 96 divisors (see below), whose sum is σ = 40513536. Its totient is φ = 3294720.

The previous prime is 13390129. The next prime is 13390177. The reversal of 13390140 is 4109331.

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 31 ways as a sum of consecutive naturals, for example, 42624 + ... + 42936.

It is an arithmetic number, because the mean of its divisors is an integer number (422016).

Almost surely, 2^13390140 is an apocalyptic number.

13390140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13390140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20256768).

13390140 is an abundant number, since it is smaller than the sum of its proper divisors (27123396).

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

13390140 is a wasteful number, since it uses less digits than its factorization.

13390140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13390140 is about 3659.2540223384. The cubic root of 13390140 is about 237.4625019284.

Adding to 13390140 its reverse (4109331), we get a palindrome (17499471).

It can be divided in two parts, 13390 and 140, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 13390140 in words is "thirteen million, three hundred ninety thousand, one hundred forty".