20104042 has 8 divisors (see below), whose sum is σ = 34464096. Its totient is φ = 8616012.

The previous prime is 20104031. The next prime is 20104043. The reversal of 20104042 is 24040102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20104043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717988 + ... + 718015.

It is an arithmetic number, because the mean of its divisors is an integer number (4308012).

Almost surely, 2^20104042 is an apocalyptic number.

20104042 is a deficient number, since it is larger than the sum of its proper divisors (14360054).

20104042 is a wasteful number, since it uses less digits than its factorization.

20104042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436012.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20104042 is about 4483.7531154157. The cubic root of 20104042 is about 271.9116368824.

Adding to 20104042 its reverse (24040102), we get a palindrome (44144144).

The spelling of 20104042 in words is "twenty million, one hundred four thousand, forty-two".