20441007 has 6 divisors (see below), whose sum is σ = 29525912. Its totient is φ = 13627332.

The previous prime is 20440999. The next prime is 20441023. The reversal of 20441007 is 70014402.

It is a happy number.

It is not a de Polignac number, because 20441007 - 2³ = 20440999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1135603 + ... + 1135620.

Almost surely, 2^20441007 is an apocalyptic number.

20441007 is a deficient number, since it is larger than the sum of its proper divisors (9084905).

20441007 is a wasteful number, since it uses less digits than its factorization.

20441007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271229 (or 2271226 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 20441007 is about 4521.1731884545. The cubic root of 20441007 is about 273.4224028911.

Adding to 20441007 its reverse (70014402), we get a palindrome (90455409).

The spelling of 20441007 in words is "twenty million, four hundred forty-one thousand, seven".