2040240440 has 48 divisors (see below), whose sum is σ = 5340022200. Its totient is φ = 699510336.

The previous prime is 2040240403. The next prime is 2040240493. The reversal of 2040240440 is 440420402.

It is a super-2 number, since 2×2040240440² = 8325162106022787200, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 518510 + ... + 522429.

Almost surely, 2^2040240440 is an apocalyptic number.

2040240440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040240440 is an abundant number, since it is smaller than the sum of its proper divisors (3299781760).

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

2040240440 is a wasteful number, since it uses less digits than its factorization.

2040240440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040964 (or 1040953 counting only the distinct ones).

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

The square root of 2040240440 is about 45169.0207996587. The cubic root of 2040240440 is about 1268.3149661899.

Adding to 2040240440 its reverse (440420402), we get a palindrome (2480660842).

The spelling of 2040240440 in words is "two billion, forty million, two hundred forty thousand, four hundred forty".