44420000 has 60 divisors (see below), whose sum is σ = 109329066. Its totient is φ = 17760000.

The previous prime is 44419981. The next prime is 44420009. The reversal of 44420000 is 2444.

It can be written as a sum of positive squares in 5 ways, for example, as 1752976 + 42667024 = 1324^2 + 6532^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (44420009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18890 + ... + 21110.

Almost surely, 2^44420000 is an apocalyptic number.

44420000 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 44420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54664533).

44420000 is an abundant number, since it is smaller than the sum of its proper divisors (64909066).

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

44420000 is an equidigital number, since it uses as much as digits as its factorization.

44420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 44420000 is about 6664.8330811807. The cubic root of 44420000 is about 354.1545709056.

Adding to 44420000 its reverse (2444), we get a palindrome (44422444).

The spelling of 44420000 in words is "forty-four million, four hundred twenty thousand".