44220231 has 24 divisors (see below), whose sum is σ = 70027776. Its totient is φ = 26666640.

The previous prime is 44220223. The next prime is 44220259. The reversal of 44220231 is 13202244.

It is not a de Polignac number, because 44220231 - 2³ = 44220223 is a prime.

It is a super-2 number, since 2×44220231² = 3910857659386722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44220221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21076 + ... + 23078.

It is an arithmetic number, because the mean of its divisors is an integer number (2917824).

Almost surely, 2^44220231 is an apocalyptic number.

44220231 is a deficient number, since it is larger than the sum of its proper divisors (25807545).

44220231 is a wasteful number, since it uses less digits than its factorization.

44220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 44220231 is about 6649.8293963078. The cubic root of 44220231 is about 353.6228627436.

Adding to 44220231 its reverse (13202244), we get a palindrome (57422475).

The spelling of 44220231 in words is "forty-four million, two hundred twenty thousand, two hundred thirty-one".