2320000020 has 72 divisors (see below), whose sum is σ = 7578674376. Its totient is φ = 571076352.

The previous prime is 2320000009. The next prime is 2320000037. The reversal of 2320000020 is 200000232.

It can be written as a sum of positive squares in 4 ways, for example, as 243921924 + 2076078096 = 15618^2 + 45564^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2319999957 and 2320000011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493387 + ... + 498066.

Almost surely, 2^2320000020 is an apocalyptic number.

2320000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320000020 is an abundant number, since it is smaller than the sum of its proper divisors (5258674356).

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

2320000020 is a wasteful number, since it uses less digits than its factorization.

2320000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991481 (or 991476 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 2320000020 is about 48166.3785227829. The cubic root of 2320000020 is about 1323.8211934093.

Adding to 2320000020 its reverse (200000232), we get a palindrome (2520000252).

The spelling of 2320000020 in words is "two billion, three hundred twenty million, twenty", and thus it is an aban number.