13372640 has 24 divisors (see below), whose sum is σ = 31593240. Its totient is φ = 5348992.

The previous prime is 13372631. The next prime is 13372649. The reversal of 13372640 is 4627331.

It is an interprime number because it is at equal distance from previous prime (13372631) and next prime (13372649).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13372649) 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, 41630 + ... + 41949.

It is an arithmetic number, because the mean of its divisors is an integer number (1316385).

Almost surely, 2^13372640 is an apocalyptic number.

13372640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13372640 is an abundant number, since it is smaller than the sum of its proper divisors (18220600).

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

13372640 is an equidigital number, since it uses as much as digits as its factorization.

13372640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83594 (or 83586 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 13372640 is about 3656.8620427902. The cubic root of 13372640 is about 237.3590077290.

Adding to 13372640 its reverse (4627331), we get a palindrome (17999971).

The spelling of 13372640 in words is "thirteen million, three hundred seventy-two thousand, six hundred forty".