20390307300 has 432 divisors, whose sum is σ = 73364054400. Its totient is φ = 4688640000.

The previous prime is 20390307283. The next prime is 20390307359. The reversal of 20390307300 is 370309302.

20390307300 is a `hidden beast` number, since 20 + 39 + 0 + 307 + 300 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33927000 + ... + 33927600.

It is an arithmetic number, because the mean of its divisors is an integer number (169824200).

Almost surely, 2^20390307300 is an apocalyptic number.

20390307300 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 20390307300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36682027200).

20390307300 is an abundant number, since it is smaller than the sum of its proper divisors (52973747100).

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

20390307300 is a wasteful number, since it uses less digits than its factorization.

20390307300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 27.

The spelling of 20390307300 in words is "twenty billion, three hundred ninety million, three hundred seven thousand, three hundred".