22445331 has 8 divisors (see below), whose sum is σ = 30223824. Its totient is φ = 14815200.

The previous prime is 22445323. The next prime is 22445351. The reversal of 22445331 is 13354422.

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

It is not a de Polignac number, because 22445331 - 2³ = 22445323 is a prime.

It is a super-2 number, since 2×22445331² = 1007585767399122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22445351) 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, 36736 + ... + 37341.

It is an arithmetic number, because the mean of its divisors is an integer number (3777978).

Almost surely, 2^22445331 is an apocalyptic number.

22445331 is a deficient number, since it is larger than the sum of its proper divisors (7778493).

22445331 is a wasteful number, since it uses less digits than its factorization.

22445331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74181.

The product of its digits is 2880, while the sum is 24.

The square root of 22445331 is about 4737.6503670068. The cubic root of 22445331 is about 282.0819765697.

Adding to 22445331 its reverse (13354422), we get a palindrome (35799753).

Subtracting from 22445331 its reverse (13354422), we obtain a palindrome (9090909).

The spelling of 22445331 in words is "twenty-two million, four hundred forty-five thousand, three hundred thirty-one".