20444045 has 8 divisors (see below), whose sum is σ = 24899424. Its totient is φ = 16110864.

The previous prime is 20444027. The next prime is 20444059. The reversal of 20444045 is 54044402.

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 20444045 - 2¹⁴ = 20427661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20444045.

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, 30179 + ... + 30848.

It is an arithmetic number, because the mean of its divisors is an integer number (3112428).

Almost surely, 2^20444045 is an apocalyptic number.

It is an amenable number.

20444045 is a deficient number, since it is larger than the sum of its proper divisors (4455379).

20444045 is an equidigital number, since it uses as much as digits as its factorization.

20444045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61099.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 20444045 is about 4521.5091507151. The cubic root of 20444045 is about 273.4359478225.

Adding to 20444045 its reverse (54044402), we get a palindrome (74488447).

The spelling of 20444045 in words is "twenty million, four hundred forty-four thousand, forty-five".