13199280 has 80 divisors (see below), whose sum is σ = 41902080. Its totient is φ = 3435264.

The previous prime is 13199267. The next prime is 13199317. The reversal of 13199280 is 8299131.

13199280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9681 + ... + 10959.

It is an arithmetic number, because the mean of its divisors is an integer number (523776).

Almost surely, 2^13199280 is an apocalyptic number.

13199280 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 13199280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20951040).

13199280 is an abundant number, since it is smaller than the sum of its proper divisors (28702800).

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

13199280 is a wasteful number, since it uses less digits than its factorization.

13199280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 13199280 is about 3633.0813368269. The cubic root of 13199280 is about 236.3288530490.

The spelling of 13199280 in words is "thirteen million, one hundred ninety-nine thousand, two hundred eighty".