44520989 has 2 divisors, whose sum is σ = 44520990. Its totient is φ = 44520988.

The previous prime is 44520967. The next prime is 44520997. The reversal of 44520989 is 98902544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28440889 + 16080100 = 5333^2 + 4010^2 .

It is a cyclic number.

It is not a de Polignac number, because 44520989 - 2²⁰ = 43472413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44520919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22260494 + 22260495.

It is an arithmetic number, because the mean of its divisors is an integer number (22260495).

Almost surely, 2^44520989 is an apocalyptic number.

It is an amenable number.

44520989 is a deficient number, since it is larger than the sum of its proper divisors (1).

44520989 is an equidigital number, since it uses as much as digits as its factorization.

44520989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 44520989 is about 6672.4050386648. The cubic root of 44520989 is about 354.4227582511.

The spelling of 44520989 in words is "forty-four million, five hundred twenty thousand, nine hundred eighty-nine".