13099872 has 48 divisors (see below), whose sum is σ = 34966512. Its totient is φ = 4293120.

The previous prime is 13099871. The next prime is 13099883. The reversal of 13099872 is 27899031.

13099872 is digitally balanced in base 2, because in such base 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 (48).

It is a self number, because there is not a number n which added to its sum of digits gives 13099872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13099871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4738 + ... + 6974.

It is an arithmetic number, because the mean of its divisors is an integer number (728469).

Almost surely, 2^13099872 is an apocalyptic number.

13099872 is a gapful number since it is divisible by the number (12) 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 13099872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17483256).

13099872 is an abundant number, since it is smaller than the sum of its proper divisors (21866640).

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

13099872 is a wasteful number, since it uses less digits than its factorization.

13099872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 13099872 is about 3619.3745316007. The cubic root of 13099872 is about 235.7340679711.

The spelling of 13099872 in words is "thirteen million, ninety-nine thousand, eight hundred seventy-two".