20440110407 has 2 divisors, whose sum is σ = 20440110408. Its totient is φ = 20440110406.

The previous prime is 20440110337. The next prime is 20440110461. The reversal of 20440110407 is 70401104402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20440110407 - 2¹⁴ = 20440094023 is a prime.

It is a super-2 number, since 2×20440110407² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20440110487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220055203 + 10220055204.

It is an arithmetic number, because the mean of its divisors is an integer number (10220055204).

Almost surely, 2^20440110407 is an apocalyptic number.

20440110407 is a deficient number, since it is larger than the sum of its proper divisors (1).

20440110407 is an equidigital number, since it uses as much as digits as its factorization.

20440110407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 20440110407 its reverse (70401104402), we get a palindrome (90841214809).

The spelling of 20440110407 in words is "twenty billion, four hundred forty million, one hundred ten thousand, four hundred seven".