13622244 has 12 divisors (see below), whose sum is σ = 31785264. Its totient is φ = 4540744.

The previous prime is 13622177. The next prime is 13622269. The reversal of 13622244 is 44222631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567582 + ... + 567605.

It is an arithmetic number, because the mean of its divisors is an integer number (2648772).

Almost surely, 2^13622244 is an apocalyptic number.

It is an amenable number.

13622244 is an abundant number, since it is smaller than the sum of its proper divisors (18163020).

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

13622244 is a wasteful number, since it uses less digits than its factorization.

13622244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135194 (or 1135192 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 13622244 is about 3690.8324264317. The cubic root of 13622244 is about 238.8267039712.

Adding to 13622244 its reverse (44222631), we get a palindrome (57844875).

The spelling of 13622244 in words is "thirteen million, six hundred twenty-two thousand, two hundred forty-four".