44809218 has 24 divisors (see below), whose sum is σ = 97405308. Its totient is φ = 14887392.

The previous prime is 44809211. The next prime is 44809231. The reversal of 44809218 is 81290844.

It can be written as a sum of positive squares in 2 ways, for example, as 30769209 + 14040009 = 5547^2 + 3747^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44809211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1780 + ... + 9632.

Almost surely, 2^44809218 is an apocalyptic number.

44809218 is an abundant number, since it is smaller than the sum of its proper divisors (52596090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44809218 is a wasteful number, since it uses less digits than its factorization.

44809218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8178 (or 8175 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 44809218 is about 6693.9687779373. The cubic root of 44809218 is about 355.1859582500.

The spelling of 44809218 in words is "forty-four million, eight hundred nine thousand, two hundred eighteen".