22244331 has 8 divisors (see below), whose sum is σ = 29965264. Its totient is φ = 14676480.

The previous prime is 22244323. The next prime is 22244333. The reversal of 22244331 is 13344222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22244331 - 2³ = 22244323 is a prime.

It is a super-2 number, since 2×22244331² = 989620523275122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22244298 and 22244307.

It is not an unprimeable number, because it can be changed into a prime (22244333) 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, 37930 + ... + 38511.

It is an arithmetic number, because the mean of its divisors is an integer number (3745658).

Almost surely, 2^22244331 is an apocalyptic number.

22244331 is a deficient number, since it is larger than the sum of its proper divisors (7720933).

22244331 is an equidigital number, since it uses as much as digits as its factorization.

22244331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76541.

The product of its digits is 1152, while the sum is 21.

The square root of 22244331 is about 4716.3896149491. The cubic root of 22244331 is about 281.2374271910.

Adding to 22244331 its reverse (13344222), we get a palindrome (35588553).

It can be divided in two parts, 2224 and 4331, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 22244331 in words is "twenty-two million, two hundred forty-four thousand, three hundred thirty-one".