20404422000 has 120 divisors (see below), whose sum is σ = 71265907440. Its totient is φ = 5441174400.

The previous prime is 20404421987. The next prime is 20404422007. The reversal of 20404422000 is 22440402.

20404422000 is a `hidden beast` number, since 20 + 4 + 0 + 442 + 200 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404422007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548790 + ... + 584789.

It is an arithmetic number, because the mean of its divisors is an integer number (593882562).

Almost surely, 2^20404422000 is an apocalyptic number.

20404422000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20404422000 is an abundant number, since it is smaller than the sum of its proper divisors (50861485440).

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

20404422000 is a wasteful number, since it uses less digits than its factorization.

20404422000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133608 (or 1133589 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20404422000 its reverse (22440402), we get a palindrome (20426862402).

The spelling of 20404422000 in words is "twenty billion, four hundred four million, four hundred twenty-two thousand".