44904985 has 4 divisors (see below), whose sum is σ = 53885988. Its totient is φ = 35923984.

The previous prime is 44904953. The next prime is 44904989. The reversal of 44904985 is 58940944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27290176 + 17614809 = 5224^2 + 4197^2 .

It is a cyclic number.

It is not a de Polignac number, because 44904985 - 2⁵ = 44904953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44904989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4490494 + ... + 4490503.

It is an arithmetic number, because the mean of its divisors is an integer number (13471497).

Almost surely, 2^44904985 is an apocalyptic number.

It is an amenable number.

44904985 is a deficient number, since it is larger than the sum of its proper divisors (8981003).

44904985 is an equidigital number, since it uses as much as digits as its factorization.

44904985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8981002.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 44904985 is about 6701.1181902724. The cubic root of 44904985 is about 355.4388146292.

The spelling of 44904985 in words is "forty-four million, nine hundred four thousand, nine hundred eighty-five".