13320140 has 24 divisors (see below), whose sum is σ = 29445360. Its totient is φ = 5047488.

The previous prime is 13320113. The next prime is 13320157. The reversal of 13320140 is 4102331.

It is a super-2 number, since 2×13320140² = 354852259239200, which contains 22 as substring.

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, 17147 + ... + 17906.

It is an arithmetic number, because the mean of its divisors is an integer number (1226890).

Almost surely, 2^13320140 is an apocalyptic number.

13320140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320140 is an abundant number, since it is smaller than the sum of its proper divisors (16125220).

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

13320140 is a wasteful number, since it uses less digits than its factorization.

13320140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35081 (or 35079 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13320140 is about 3649.6766980104. The cubic root of 13320140 is about 237.0479823565.

Adding to 13320140 its reverse (4102331), we get a palindrome (17422471).

The spelling of 13320140 in words is "thirteen million, three hundred twenty thousand, one hundred forty".