20441403 has 12 divisors (see below), whose sum is σ = 30620408. Its totient is φ = 13627440.

The previous prime is 20441401. The next prime is 20441419. The reversal of 20441403 is 30414402.

It is not a de Polignac number, because 20441403 - 2¹ = 20441401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20441401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41818 + ... + 42303.

Almost surely, 2^20441403 is an apocalyptic number.

20441403 is a deficient number, since it is larger than the sum of its proper divisors (10179005).

20441403 is an frugal number, since it uses more digits than its factorization.

20441403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84136 (or 84124 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20441403 is about 4521.2169821852. The cubic root of 20441403 is about 273.4241685343.

Adding to 20441403 its reverse (30414402), we get a palindrome (50855805).

The spelling of 20441403 in words is "twenty million, four hundred forty-one thousand, four hundred three".