44000001 has 6 divisors (see below), whose sum is σ = 63555570. Its totient is φ = 29333328.

The previous prime is 43999999. The next prime is 44000003. The reversal of 44000001 is 10000044.

It is an interprime number because it is at equal distance from previous prime (43999999) and next prime (44000003).

It can be written as a sum of positive squares in only one way, i.e., 24206400 + 19793601 = 4920^2 + 4449^2 .

It is not a de Polignac number, because 44000001 - 2¹ = 43999999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 4888889 = 44000001 / (4 + 4 + 0 + 0 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (44000003) 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, 2444436 + ... + 2444453.

It is an arithmetic number, because the mean of its divisors is an integer number (10592595).

Almost surely, 2^44000001 is an apocalyptic number.

It is an amenable number.

44000001 is a deficient number, since it is larger than the sum of its proper divisors (19555569).

44000001 is a wasteful number, since it uses less digits than its factorization.

44000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888895 (or 4888892 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 44000001 is about 6633.2496560886. The cubic root of 44000001 is about 353.0348362071.

Adding to 44000001 its reverse (10000044), we get a palindrome (54000045).

The spelling of 44000001 in words is "forty-four million, one", and thus it is an aban number.