20104402 has 8 divisors (see below), whose sum is σ = 30176496. Its totient is φ = 10045572.

The previous prime is 20104397. The next prime is 20104423. The reversal of 20104402 is 20440102.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2553 + ... + 6835.

It is an arithmetic number, because the mean of its divisors is an integer number (3772062).

Almost surely, 2^20104402 is an apocalyptic number.

20104402 is a deficient number, since it is larger than the sum of its proper divisors (10072094).

20104402 is a wasteful number, since it uses less digits than its factorization.

20104402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632.

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

The square root of 20104402 is about 4483.7932601760. The cubic root of 20104402 is about 271.9132598994.

Adding to 20104402 its reverse (20440102), we get a palindrome (40544504).

It can be divided in two parts, 20104 and 402, that multiplied together give a palindrome (8081808).

The spelling of 20104402 in words is "twenty million, one hundred four thousand, four hundred two".