2040320420 has 24 divisors (see below), whose sum is σ = 4303071864. Its totient is φ = 812623616.

The previous prime is 2040320419. The next prime is 2040320423. The reversal of 2040320420 is 240230402.

It can be written as a sum of positive squares in 4 ways, for example, as 52765696 + 1987554724 = 7264^2 + 44582^2 .

It is not an unprimeable number, because it can be changed into a prime (2040320423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214259 + ... + 223578.

It is an arithmetic number, because the mean of its divisors is an integer number (179294661).

Almost surely, 2^2040320420 is an apocalyptic number.

2040320420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040320420 is an abundant number, since it is smaller than the sum of its proper divisors (2262751444).

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

2040320420 is a wasteful number, since it uses less digits than its factorization.

2040320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438079 (or 438077 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2040320420 is about 45169.9061322912. The cubic root of 2040320420 is about 1268.3315391558.

Adding to 2040320420 its reverse (240230402), we get a palindrome (2280550822).

The spelling of 2040320420 in words is "two billion, forty million, three hundred twenty thousand, four hundred twenty".