22233444 has 48 divisors (see below), whose sum is σ = 53760000. Its totient is φ = 7147296.

The previous prime is 22233443. The next prime is 22233457. The reversal of 22233444 is 44433222.

It is a super-2 number, since 2×22233444² = 988652064202272, which contains 22 as substring.

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

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22233443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44307 + ... + 44805.

It is an arithmetic number, because the mean of its divisors is an integer number (1120000).

Almost surely, 2^22233444 is an apocalyptic number.

It is an amenable number.

22233444 is an abundant number, since it is smaller than the sum of its proper divisors (31526556).

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

22233444 is a wasteful number, since it uses less digits than its factorization.

22233444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 630 counting only the distinct ones).

The product of its digits is 4608, while the sum is 24.

The square root of 22233444 is about 4715.2353069598. The cubic root of 22233444 is about 281.1915378733.

Adding to 22233444 its reverse (44433222), we get a palindrome (66666666).

The spelling of 22233444 in words is "twenty-two million, two hundred thirty-three thousand, four hundred forty-four".