20442344045 has 8 divisors (see below), whose sum is σ = 25193808024. Its totient is φ = 15911878464.

The previous prime is 20442344023. The next prime is 20442344099. The reversal of 20442344045 is 54044324402.

It can be written as a sum of positive squares in 4 ways, for example, as 10630847236 + 9811496809 = 103106^2 + 99053^2 .

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 20442344045 - 2¹² = 20442339949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55249394 + ... + 55249763.

It is an arithmetic number, because the mean of its divisors is an integer number (3149226003).

Almost surely, 2^20442344045 is an apocalyptic number.

It is an amenable number.

20442344045 is a deficient number, since it is larger than the sum of its proper divisors (4751463979).

20442344045 is a wasteful number, since it uses less digits than its factorization.

20442344045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110499199.

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 20442344045 its reverse (54044324402), we get a palindrome (74486668447).

The spelling of 20442344045 in words is "twenty billion, four hundred forty-two million, three hundred forty-four thousand, forty-five".