20441603 has 8 divisors (see below), whose sum is σ = 25159008. Its totient is φ = 16173504.

The previous prime is 20441593. The next prime is 20441611. The reversal of 20441603 is 30614402.

It is a happy number.

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 20441603 - 2⁸ = 20441347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20441203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112226 + ... + 112407.

It is an arithmetic number, because the mean of its divisors is an integer number (3144876).

Almost surely, 2^20441603 is an apocalyptic number.

20441603 is a deficient number, since it is larger than the sum of its proper divisors (4717405).

20441603 is a wasteful number, since it uses less digits than its factorization.

20441603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224653.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20441603 is about 4521.2391000698. The cubic root of 20441603 is about 273.4250602646.

The spelling of 20441603 in words is "twenty million, four hundred forty-one thousand, six hundred three".