44422001 has 4 divisors (see below), whose sum is σ = 47839092. Its totient is φ = 41004912.

The previous prime is 44421959. The next prime is 44422009. The reversal of 44422001 is 10022444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24850225 + 19571776 = 4985^2 + 4424^2 .

It is a de Polignac number, because none of the positive numbers 2^k-44422001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44422009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708526 + ... + 1708551.

It is an arithmetic number, because the mean of its divisors is an integer number (11959773).

Almost surely, 2^44422001 is an apocalyptic number.

It is an amenable number.

44422001 is a deficient number, since it is larger than the sum of its proper divisors (3417091).

44422001 is a wasteful number, since it uses less digits than its factorization.

44422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417090.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 44422001 is about 6664.9831957778. The cubic root of 44422001 is about 354.1598887253.

Adding to 44422001 its reverse (10022444), we get a palindrome (54444445).

The spelling of 44422001 in words is "forty-four million, four hundred twenty-two thousand, one".