44242989 has 8 divisors (see below), whose sum is σ = 67417920. Its totient is φ = 25281696.

The previous prime is 44242967. The next prime is 44242999. The reversal of 44242989 is 98924244.

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

It is not a de Polignac number, because 44242989 - 2⁸ = 44242733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44242989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44242909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053384 + ... + 1053425.

It is an arithmetic number, because the mean of its divisors is an integer number (8427240).

Almost surely, 2^44242989 is an apocalyptic number.

It is an amenable number.

44242989 is a deficient number, since it is larger than the sum of its proper divisors (23174931).

44242989 is a wasteful number, since it uses less digits than its factorization.

44242989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106819.

The product of its digits is 165888, while the sum is 42.

The square root of 44242989 is about 6651.5403479194. The cubic root of 44242989 is about 353.6835164966.

The spelling of 44242989 in words is "forty-four million, two hundred forty-two thousand, nine hundred eighty-nine".