44220045 has 16 divisors (see below), whose sum is σ = 70963200. Its totient is φ = 23513664.

The previous prime is 44220037. The next prime is 44220047. The reversal of 44220045 is 54002244.

It is not a de Polignac number, because 44220045 - 2³ = 44220037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44220047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012 + ... + 9458.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 2^44220045 is an apocalyptic number.

It is an amenable number.

44220045 is a deficient number, since it is larger than the sum of its proper divisors (26743155).

44220045 is a wasteful number, since it uses less digits than its factorization.

44220045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8804.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 44220045 is about 6649.8154109719. The cubic root of 44220045 is about 353.6223669377.

Adding to 44220045 its reverse (54002244), we get a palindrome (98222289).

The spelling of 44220045 in words is "forty-four million, two hundred twenty thousand, forty-five".