44222289 has 16 divisors (see below), whose sum is σ = 61052928. Its totient is φ = 28449792.

The previous prime is 44222273. The next prime is 44222293. The reversal of 44222289 is 98222244.

It is a happy number.

It is not a de Polignac number, because 44222289 - 2⁴ = 44222273 is a prime.

It is a super-2 number, since 2×44222289² = 3911221688799042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44222209) 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, 12529 + ... + 15665.

It is an arithmetic number, because the mean of its divisors is an integer number (3815808).

Almost surely, 2^44222289 is an apocalyptic number.

It is an amenable number.

44222289 is a deficient number, since it is larger than the sum of its proper divisors (16830639).

44222289 is a wasteful number, since it uses less digits than its factorization.

44222289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304.

The product of its digits is 18432, while the sum is 33.

The square root of 44222289 is about 6649.9841353194. The cubic root of 44222289 is about 353.6283485023.

The spelling of 44222289 in words is "forty-four million, two hundred twenty-two thousand, two hundred eighty-nine".