44430989 has 2 divisors, whose sum is σ = 44430990. Its totient is φ = 44430988.

The previous prime is 44430973. The next prime is 44431031. The reversal of 44430989 is 98903444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39062500 + 5368489 = 6250^2 + 2317^2 .

It is a cyclic number.

It is not a de Polignac number, because 44430989 - 2⁴ = 44430973 is a prime.

It is a super-2 number, since 2×44430989² = 3948225567036242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44430959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22215494 + 22215495.

It is an arithmetic number, because the mean of its divisors is an integer number (22215495).

Almost surely, 2^44430989 is an apocalyptic number.

It is an amenable number.

44430989 is a deficient number, since it is larger than the sum of its proper divisors (1).

44430989 is an equidigital number, since it uses as much as digits as its factorization.

44430989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 44430989 is about 6665.6574319417. The cubic root of 44430989 is about 354.1837730945.

The spelling of 44430989 in words is "forty-four million, four hundred thirty thousand, nine hundred eighty-nine".