13072044 has 24 divisors (see below), whose sum is σ = 30582720. Its totient is φ = 4345744.

The previous prime is 13072021. The next prime is 13072067. The reversal of 13072044 is 44027031.

It is an interprime number because it is at equal distance from previous prime (13072021) and next prime (13072067).

It is a self number, because there is not a number n which added to its sum of digits gives 13072044.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4087 + ... + 6545.

It is an arithmetic number, because the mean of its divisors is an integer number (1274280).

Almost surely, 2^13072044 is an apocalyptic number.

It is an amenable number.

13072044 is an abundant number, since it is smaller than the sum of its proper divisors (17510676).

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

13072044 is a wasteful number, since it uses less digits than its factorization.

13072044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909 (or 2907 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 13072044 is about 3615.5281771824. The cubic root of 13072044 is about 235.5670266884.

Adding to 13072044 its reverse (44027031), we get a palindrome (57099075).

The spelling of 13072044 in words is "thirteen million, seventy-two thousand, forty-four".