44258989 has 2 divisors, whose sum is σ = 44258990. Its totient is φ = 44258988.

The previous prime is 44258933. The next prime is 44259011. The reversal of 44258989 is 98985244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24304900 + 19954089 = 4930^2 + 4467^2 .

It is a cyclic number.

It is not a de Polignac number, because 44258989 - 2⁷ = 44258861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44258189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22129494 + 22129495.

It is an arithmetic number, because the mean of its divisors is an integer number (22129495).

Almost surely, 2^44258989 is an apocalyptic number.

It is an amenable number.

44258989 is a deficient number, since it is larger than the sum of its proper divisors (1).

44258989 is an equidigital number, since it uses as much as digits as its factorization.

44258989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 49.

The square root of 44258989 is about 6652.7429681298. The cubic root of 44258989 is about 353.7261466350.

The spelling of 44258989 in words is "forty-four million, two hundred fifty-eight thousand, nine hundred eighty-nine".