20104454242 has 16 divisors (see below), whose sum is σ = 31166053632. Its totient is φ = 9716531760.

The previous prime is 20104454239. The next prime is 20104454267. The reversal of 20104454242 is 24245440102.

It is a self number, because there is not a number n which added to its sum of digits gives 20104454242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137188 + ... + 242959.

It is an arithmetic number, because the mean of its divisors is an integer number (1947878352).

Almost surely, 2^20104454242 is an apocalyptic number.

20104454242 is a deficient number, since it is larger than the sum of its proper divisors (11061599390).

20104454242 is a wasteful number, since it uses less digits than its factorization.

20104454242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381033.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 20104454242 its reverse (24245440102), we get a palindrome (44349894344).

The spelling of 20104454242 in words is "twenty billion, one hundred four million, four hundred fifty-four thousand, two hundred forty-two".