20620384000 has 144 divisors (see below), whose sum is σ = 51644488896. Its totient is φ = 8203776000.

The previous prime is 20620383977. The next prime is 20620384027. The reversal of 20620384000 is 48302602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6302365 + ... + 6305635.

It is an arithmetic number, because the mean of its divisors is an integer number (358642284).

Almost surely, 2^20620384000 is an apocalyptic number.

20620384000 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 20620384000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25822244448).

20620384000 is an abundant number, since it is smaller than the sum of its proper divisors (31024104896).

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

20620384000 is an equidigital number, since it uses as much as digits as its factorization.

20620384000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499 (or 3475 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20620384000 its reverse (48302602), we get a palindrome (20668686602).

The spelling of 20620384000 in words is "twenty billion, six hundred twenty million, three hundred eighty-four thousand".