44978889 has 8 divisors (see below), whose sum is σ = 63499680. Its totient is φ = 28222016.

The previous prime is 44978873. The next prime is 44978891. The reversal of 44978889 is 98887944.

44978889 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 a cyclic number.

It is not a de Polignac number, because 44978889 - 2⁴ = 44978873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44978809) 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, 440919 + ... + 441020.

It is an arithmetic number, because the mean of its divisors is an integer number (7937460).

Almost surely, 2^44978889 is an apocalyptic number.

It is an amenable number.

44978889 is a deficient number, since it is larger than the sum of its proper divisors (18520791).

44978889 is a wasteful number, since it uses less digits than its factorization.

44978889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881959.

The product of its digits is 4644864, while the sum is 57.

The square root of 44978889 is about 6706.6302268725. The cubic root of 44978889 is about 355.6336998416.

The spelling of 44978889 in words is "forty-four million, nine hundred seventy-eight thousand, eight hundred eighty-nine".