20204402402000 has 40 divisors (see below), whose sum is σ = 48854245012872. Its totient is φ = 8081760960000.

The previous prime is 20204402401993. The next prime is 20204402402059. The reversal of 20204402402000 is 20420440202.

It can be written as a sum of positive squares in 4 ways, for example, as 985437406864 + 19218964995136 = 992692^2 + 4383944^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5051098601 + ... + 5051102600.

Almost surely, 2^{20204402402000} is an apocalyptic number.

20204402402000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20204402402000 is an abundant number, since it is smaller than the sum of its proper divisors (28649842610872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20204402402000 is a wasteful number, since it uses less digits than its factorization.

20204402402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102201224 (or 10102201208 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20204402402000 its reverse (20420440202), we get a palindrome (20224822842202).

The spelling of 20204402402000 in words is "twenty trillion, two hundred four billion, four hundred two million, four hundred two thousand".