44521000 has 48 divisors (see below), whose sum is σ = 104675220. Its totient is φ = 17724000.

The previous prime is 44520997. The next prime is 44521019. The reversal of 44521000 is 12544.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 30096196 + 14424804 = 5486^2 + 3798^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210895 + ... + 211105.

Almost surely, 2^44521000 is an apocalyptic number.

44521000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44521000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52337610).

44521000 is an abundant number, since it is smaller than the sum of its proper divisors (60154220).

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

44521000 is an equidigital number, since it uses as much as digits as its factorization.

44521000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 44521000 is about 6672.4058629553. The cubic root of 44521000 is about 354.4227874407.

Multiplying 44521000 by its product of nonzero digits (160), we get a square (7123360000 = 84400²).

Adding to 44521000 its reverse (12544), we get a palindrome (44533544).

The spelling of 44521000 in words is "forty-four million, five hundred twenty-one thousand".