13079844 has 18 divisors (see below), whose sum is σ = 33063030. Its totient is φ = 4359936.

The previous prime is 13079839. The next prime is 13079873. The reversal of 13079844 is 44897031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 1790244 = 3360^2 + 1338^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 363329 = 13079844 / (1 + 3 + 0 + 7 + 9 + 8 + 4 + 4).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13079799 and 13079808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181629 + ... + 181700.

It is an arithmetic number, because the mean of its divisors is an integer number (1836835).

Almost surely, 2^13079844 is an apocalyptic number.

It is an amenable number.

13079844 is an abundant number, since it is smaller than the sum of its proper divisors (19983186).

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

13079844 is a wasteful number, since it uses less digits than its factorization.

13079844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363339 (or 363334 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 13079844 is about 3616.6066968914. The cubic root of 13079844 is about 235.6138711215.

The spelling of 13079844 in words is "thirteen million, seventy-nine thousand, eight hundred forty-four".