20043047000 has 64 divisors (see below), whose sum is σ = 46957341600. Its totient is φ = 8007542400.

The previous prime is 20043046963. The next prime is 20043047081. The reversal of 20043047000 is 74034002.

It is a happy number.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847334 + ... + 870666.

Almost surely, 2^20043047000 is an apocalyptic number.

20043047000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20043047000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23478670800).

20043047000 is an abundant number, since it is smaller than the sum of its proper divisors (26914294600).

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

20043047000 is a wasteful number, since it uses less digits than its factorization.

20043047000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24213 (or 24199 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The spelling of 20043047000 in words is "twenty billion, forty-three million, forty-seven thousand".