20330240404 has 24 divisors (see below), whose sum is σ = 35752906728. Its totient is φ = 10115189760.

The previous prime is 20330240387. The next prime is 20330240459. The reversal of 20330240404 is 40404203302.

It can be written as a sum of positive squares in 4 ways, for example, as 6280879504 + 14049360900 = 79252^2 + 118530^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374054 + ... + 1388770.

It is an arithmetic number, because the mean of its divisors is an integer number (1489704447).

Almost surely, 2^20330240404 is an apocalyptic number.

It is an amenable number.

20330240404 is a deficient number, since it is larger than the sum of its proper divisors (15422666324).

20330240404 is a wasteful number, since it uses less digits than its factorization.

20330240404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16395 (or 16393 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20330240404 its reverse (40404203302), we get a palindrome (60734443706).

The spelling of 20330240404 in words is "twenty billion, three hundred thirty million, two hundred forty thousand, four hundred four".