2040220040 has 32 divisors (see below), whose sum is σ = 4600494360. Its totient is φ = 814310400.

The previous prime is 2040220027. The next prime is 2040220043. The reversal of 2040220040 is 400220402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1426270756 + 613949284 = 37766^2 + 24778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2040219997 and 2040220024.

It is not an unprimeable number, because it can be changed into a prime (2040220043) 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, 36881 + ... + 73760.

Almost surely, 2^2040220040 is an apocalyptic number.

2040220040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040220040 is an abundant number, since it is smaller than the sum of its proper divisors (2560274320).

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

2040220040 is a wasteful number, since it uses less digits than its factorization.

2040220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111113 (or 111109 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2040220040 is about 45168.7949806058. The cubic root of 2040220040 is about 1268.3107389575.

Adding to 2040220040 its reverse (400220402), we get a palindrome (2440440442).

The spelling of 2040220040 in words is "two billion, forty million, two hundred twenty thousand, forty".