2044320140 has 24 divisors (see below), whose sum is σ = 4298399952. Its totient is φ = 816713280.

The previous prime is 2044320097. The next prime is 2044320149. The reversal of 2044320140 is 410234402.

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

It is not an unprimeable number, because it can be changed into a prime (2044320149) 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, 46799 + ... + 79238.

It is an arithmetic number, because the mean of its divisors is an integer number (179099998).

Almost surely, 2^2044320140 is an apocalyptic number.

2044320140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044320140 is an abundant number, since it is smaller than the sum of its proper divisors (2254079812).

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

2044320140 is a wasteful number, since it uses less digits than its factorization.

2044320140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126857 (or 126855 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2044320140 is about 45214.1586231570. The cubic root of 2044320140 is about 1269.1597848347.

Adding to 2044320140 its reverse (410234402), we get a palindrome (2454554542).

The spelling of 2044320140 in words is "two billion, forty-four million, three hundred twenty thousand, one hundred forty".