20441031 has 16 divisors (see below), whose sum is σ = 29589504. Its totient is φ = 12477024.

The previous prime is 20441023. The next prime is 20441033. The reversal of 20441031 is 13014402.

It is not a de Polignac number, because 20441031 - 2³ = 20441023 is a prime.

It is a super-2 number, since 2×20441031² = 835671496685922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20441031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2890 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (1849344).

Almost surely, 2^20441031 is an apocalyptic number.

20441031 is a deficient number, since it is larger than the sum of its proper divisors (9148473).

20441031 is a wasteful number, since it uses less digits than its factorization.

20441031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20441031 is about 4521.1758426321. The cubic root of 20441031 is about 273.4225099004.

Adding to 20441031 its reverse (13014402), we get a palindrome (33455433).

The spelling of 20441031 in words is "twenty million, four hundred forty-one thousand, thirty-one".