44220001 has 6 divisors (see below), whose sum is σ = 51439650. Its totient is φ = 37902816.

The previous prime is 44219971. The next prime is 44220023. The reversal of 44220001 is 10002244.

44220001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 42837025 + 1382976 = 6545^2 + 1176^2 .

It is not a de Polignac number, because 44220001 - 2⁹ = 44219489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44220061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451176 + ... + 451273.

It is an arithmetic number, because the mean of its divisors is an integer number (8573275).

Almost surely, 2^44220001 is an apocalyptic number.

It is an amenable number.

44220001 is a deficient number, since it is larger than the sum of its proper divisors (7219649).

44220001 is an equidigital number, since it uses as much as digits as its factorization.

44220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902463 (or 902456 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 44220001 is about 6649.8121026086. The cubic root of 44220001 is about 353.6222496501.

Adding to 44220001 its reverse (10002244), we get a palindrome (54222245).

The spelling of 44220001 in words is "forty-four million, two hundred twenty thousand, one".