20204402440402 has 8 divisors (see below), whose sum is σ = 30306636927216. Its totient is φ = 10102190131332.

The previous prime is 20204402440399. The next prime is 20204402440403. The reversal of 20204402440402 is 20404420440202.

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 (20204402440403) 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, 3040768 + ... + 7046635.

It is an arithmetic number, because the mean of its divisors is an integer number (3788329615902).

Almost surely, 2^{20204402440402} is an apocalyptic number.

20204402440402 is a deficient number, since it is larger than the sum of its proper divisors (10102234486814).

20204402440402 is a wasteful number, since it uses less digits than its factorization.

20204402440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088872.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20204402440402 its reverse (20404420440202), we get a palindrome (40608822880604).

The spelling of 20204402440402 in words is "twenty trillion, two hundred four billion, four hundred two million, four hundred forty thousand, four hundred two".