44242220645 has 8 divisors (see below), whose sum is σ = 60675045504. Its totient is φ = 30337522704.

The previous prime is 44242220609. The next prime is 44242220657. The reversal of 44242220645 is 54602224244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44242220645 - 2¹⁴ = 44242204261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1264063447 = 44242220645 / (4 + 4 + 2 + 4 + 2 + 2 + 2 + 0 + 6 + 4 + 5).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632031689 + ... + 632031758.

It is an arithmetic number, because the mean of its divisors is an integer number (7584380688).

Almost surely, 2^44242220645 is an apocalyptic number.

It is an amenable number.

44242220645 is a deficient number, since it is larger than the sum of its proper divisors (16432824859).

44242220645 is a wasteful number, since it uses less digits than its factorization.

44242220645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264063459.

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 44242220645 its reverse (54602224244), we get a palindrome (98844444889).

The spelling of 44242220645 in words is "forty-four billion, two hundred forty-two million, two hundred twenty thousand, six hundred forty-five".