13297140 has 72 divisors (see below), whose sum is σ = 41653248. Its totient is φ = 3430080.

The previous prime is 13297139. The next prime is 13297147. The reversal of 13297140 is 4179231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13297147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4389 + ... + 6771.

Almost surely, 2^13297140 is an apocalyptic number.

13297140 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 13297140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20826624).

13297140 is an abundant number, since it is smaller than the sum of its proper divisors (28356108).

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

13297140 is a wasteful number, since it uses less digits than its factorization.

13297140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429 (or 2424 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13297140 is about 3646.5243726047. The cubic root of 13297140 is about 236.9114661569.

The spelling of 13297140 in words is "thirteen million, two hundred ninety-seven thousand, one hundred forty".