13022244 has 36 divisors (see below), whose sum is σ = 33480720. Its totient is φ = 4266480.

The previous prime is 13022231. The next prime is 13022257. The reversal of 13022244 is 44222031.

It is an interprime number because it is at equal distance from previous prime (13022231) and next prime (13022257).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942 + ... + 5189.

It is an arithmetic number, because the mean of its divisors is an integer number (930020).

Almost surely, 2^13022244 is an apocalyptic number.

It is an amenable number.

13022244 is an abundant number, since it is smaller than the sum of its proper divisors (20458476).

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

13022244 is a wasteful number, since it uses less digits than its factorization.

13022244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200 (or 6195 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 13022244 is about 3608.6346448484. The cubic root of 13022244 is about 235.2675028377.

Adding to 13022244 its reverse (44222031), we get a palindrome (57244275).

The spelling of 13022244 in words is "thirteen million, twenty-two thousand, two hundred forty-four".