2040424240 has 20 divisors (see below), whose sum is σ = 4743986544. Its totient is φ = 816169664.

The previous prime is 2040424223. The next prime is 2040424249. The reversal of 2040424240 is 424240402.

It is a tau number, because it is divible by the number of its divisors (20).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2040424249) 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, 12752572 + ... + 12752731.

Almost surely, 2^2040424240 is an apocalyptic number.

2040424240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040424240 is an abundant number, since it is smaller than the sum of its proper divisors (2703562304).

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

2040424240 is a wasteful number, since it uses less digits than its factorization.

2040424240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505316 (or 25505310 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 2040424240 is about 45171.0553341407. The cubic root of 2040424240 is about 1268.3530514545.

Adding to 2040424240 its reverse (424240402), we get a palindrome (2464664642).

It can be divided in two parts, 20404 and 24240, that added together give a palindrome (44644).

The spelling of 2040424240 in words is "two billion, forty million, four hundred twenty-four thousand, two hundred forty".