44509989 has 8 divisors (see below), whose sum is σ = 62470240. Its totient is φ = 28111536.

The previous prime is 44509981. The next prime is 44509999. The reversal of 44509989 is 98990544.

44509989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44509989 - 2³ = 44509981 is a prime.

It is a super-2 number, since 2×44509989² = 3962278241560242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44509981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390382 + ... + 390495.

It is an arithmetic number, because the mean of its divisors is an integer number (7808780).

Almost surely, 2^44509989 is an apocalyptic number.

It is an amenable number.

44509989 is a deficient number, since it is larger than the sum of its proper divisors (17960251).

44509989 is a wasteful number, since it uses less digits than its factorization.

44509989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780899.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 44509989 is about 6671.5806972561. The cubic root of 44509989 is about 354.3935662411.

The spelling of 44509989 in words is "forty-four million, five hundred nine thousand, nine hundred eighty-nine".