2023320440 has 16 divisors (see below), whose sum is σ = 4552471080. Its totient is φ = 809328160.

The previous prime is 2023320427. The next prime is 2023320463. The reversal of 2023320440 is 440233202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25291466 + ... + 25291545.

Almost surely, 2^2023320440 is an apocalyptic number.

2023320440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2023320440 is an abundant number, since it is smaller than the sum of its proper divisors (2529150640).

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

2023320440 is a wasteful number, since it uses less digits than its factorization.

2023320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50583022 (or 50583018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2023320440 is about 44981.3343510394. The cubic root of 2023320440 is about 1264.7991244723.

Adding to 2023320440 its reverse (440233202), we get a palindrome (2463553642).

The spelling of 2023320440 in words is "two billion, twenty-three million, three hundred twenty thousand, four hundred forty".