44939221 has 2 divisors, whose sum is σ = 44939222. Its totient is φ = 44939220.

The previous prime is 44939159. The next prime is 44939231. The reversal of 44939221 is 12293944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31696900 + 13242321 = 5630^2 + 3639^2 .

It is a cyclic number.

It is not a de Polignac number, because 44939221 - 2¹⁷ = 44808149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44939231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22469610 + 22469611.

It is an arithmetic number, because the mean of its divisors is an integer number (22469611).

Almost surely, 2^44939221 is an apocalyptic number.

It is an amenable number.

44939221 is a deficient number, since it is larger than the sum of its proper divisors (1).

44939221 is an equidigital number, since it uses as much as digits as its factorization.

44939221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 44939221 is about 6703.6722026066. The cubic root of 44939221 is about 355.5291216929.

The spelling of 44939221 in words is "forty-four million, nine hundred thirty-nine thousand, two hundred twenty-one".