44421800 has 24 divisors (see below), whose sum is σ = 103281150. Its totient is φ = 17768640.

The previous prime is 44421781. The next prime is 44421803. The reversal of 44421800 is 812444.

It can be written as a sum of positive squares in 3 ways, for example, as 36990724 + 7431076 = 6082^2 + 2726^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (44421803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110855 + ... + 111254.

Almost surely, 2^44421800 is an apocalyptic number.

44421800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44421800 is an abundant number, since it is smaller than the sum of its proper divisors (58859350).

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

44421800 is a wasteful number, since it uses less digits than its factorization.

44421800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222125 (or 222116 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 44421800 is about 6664.9681169530. The cubic root of 44421800 is about 354.1593545588.

The spelling of 44421800 in words is "forty-four million, four hundred twenty-one thousand, eight hundred".