2044040420 has 12 divisors (see below), whose sum is σ = 4292484924. Its totient is φ = 817616160.

The previous prime is 2044040417. The next prime is 2044040423. The reversal of 2044040420 is 240404402.

It is an interprime number because it is at equal distance from previous prime (2044040417) and next prime (2044040423).

It can be written as a sum of positive squares in 2 ways, for example, as 1018375744 + 1025664676 = 31912^2 + 32026^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 102202021 = 2044040420 / (2 + 0 + 4 + 4 + 0 + 4 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2044040392 and 2044040401.

It is not an unprimeable number, because it can be changed into a prime (2044040423) by changing a digit.

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, 51100991 + ... + 51101030.

It is an arithmetic number, because the mean of its divisors is an integer number (357707077).

Almost surely, 2^2044040420 is an apocalyptic number.

2044040420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044040420 is an abundant number, since it is smaller than the sum of its proper divisors (2248444504).

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

2044040420 is a wasteful number, since it uses less digits than its factorization.

2044040420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102202030 (or 102202028 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2044040420 is about 45211.0652385011. The cubic root of 2044040420 is about 1269.1018967116.

Adding to 2044040420 its reverse (240404402), we get a palindrome (2284444822).

The spelling of 2044040420 in words is "two billion, forty-four million, forty thousand, four hundred twenty".