44431229 has 2 divisors, whose sum is σ = 44431230. Its totient is φ = 44431228.

The previous prime is 44431207. The next prime is 44431243. The reversal of 44431229 is 92213444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40322500 + 4108729 = 6350^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 44431229 - 2⁸ = 44430973 is a prime.

It is a super-2 number, since 2×44431229² = 3948268220900882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44431279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22215614 + 22215615.

It is an arithmetic number, because the mean of its divisors is an integer number (22215615).

Almost surely, 2^44431229 is an apocalyptic number.

It is an amenable number.

44431229 is a deficient number, since it is larger than the sum of its proper divisors (1).

44431229 is an equidigital number, since it uses as much as digits as its factorization.

44431229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 44431229 is about 6665.6754346428. The cubic root of 44431229 is about 354.1844108172.

The spelling of 44431229 in words is "forty-four million, four hundred thirty-one thousand, two hundred twenty-nine".