20441045 has 4 divisors (see below), whose sum is σ = 24529260. Its totient is φ = 16352832.

The previous prime is 20441033. The next prime is 20441051. The reversal of 20441045 is 54014402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13712209 + 6728836 = 3703^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441045 - 2¹⁴ = 20424661 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 2044100 + ... + 2044109.

It is an arithmetic number, because the mean of its divisors is an integer number (6132315).

Almost surely, 2^20441045 is an apocalyptic number.

It is an amenable number.

20441045 is a deficient number, since it is larger than the sum of its proper divisors (4088215).

20441045 is an equidigital number, since it uses as much as digits as its factorization.

20441045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088214.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20441045 is about 4521.1773909016. The cubic root of 20441045 is about 273.4225723225.

Adding to 20441045 its reverse (54014402), we get a palindrome (74455447).

It can be divided in two parts, 20 and 441045, that multiplied together give a square (8820900 = 2970²).

The spelling of 20441045 in words is "twenty million, four hundred forty-one thousand, forty-five".