20073208400 has 240 divisors, whose sum is σ = 58351920000. Its totient is φ = 6489262080.

The previous prime is 20073208399. The next prime is 20073208471. The reversal of 20073208400 is 480237002.

It is a self number, because there is not a number n which added to its sum of digits gives 20073208400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3488726 + ... + 3494474.

It is an arithmetic number, because the mean of its divisors is an integer number (243133000).

Almost surely, 2^20073208400 is an apocalyptic number.

20073208400 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 20073208400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29175960000).

20073208400 is an abundant number, since it is smaller than the sum of its proper divisors (38278711600).

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

20073208400 is a wasteful number, since it uses less digits than its factorization.

20073208400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5846 (or 5835 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 20073208400 in words is "twenty billion, seventy-three million, two hundred eight thousand, four hundred".