2140323020 has 72 divisors (see below), whose sum is σ = 5200566000. Its totient is φ = 737320320.

The previous prime is 2140323011. The next prime is 2140323037. The reversal of 2140323020 is 203230412.

It is a self number, because there is not a number n which added to its sum of digits gives 2140323020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22706 + ... + 69254.

Almost surely, 2^2140323020 is an apocalyptic number.

2140323020 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 2140323020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2600283000).

2140323020 is an abundant number, since it is smaller than the sum of its proper divisors (3060242980).

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

2140323020 is a wasteful number, since it uses less digits than its factorization.

2140323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46599 (or 46586 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2140323020 is about 46263.6252362480. The cubic root of 2140323020 is about 1288.7235776830.

Adding to 2140323020 its reverse (203230412), we get a palindrome (2343553432).

The spelling of 2140323020 in words is "two billion, one hundred forty million, three hundred twenty-three thousand, twenty".