20104424 has 32 divisors (see below), whose sum is σ = 39285000. Its totient is φ = 9633792.

The previous prime is 20104423. The next prime is 20104429. The reversal of 20104424 is 42440102.

It can be written as a sum of positive squares in 4 ways, for example, as 16144324 + 3960100 = 4018^2 + 1990^2 .

It is not an unprimeable number, because it can be changed into a prime (20104423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44552 + ... + 45000.

Almost surely, 2^20104424 is an apocalyptic number.

It is an amenable number.

20104424 is a deficient number, since it is larger than the sum of its proper divisors (19180576).

20104424 is a wasteful number, since it uses less digits than its factorization.

20104424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 20104424 is about 4483.7957134553. The cubic root of 20104424 is about 271.9133590832.

Adding to 20104424 its reverse (42440102), we get a palindrome (62544526).

The spelling of 20104424 in words is "twenty million, one hundred four thousand, four hundred twenty-four".