2431040440 has 16 divisors (see below), whose sum is σ = 5469841080. Its totient is φ = 972416160.

The previous prime is 2431040431. The next prime is 2431040471. The reversal of 2431040440 is 440401342.

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 3 ways as a sum of consecutive naturals, for example, 30387966 + ... + 30388045.

Almost surely, 2^2431040440 is an apocalyptic number.

2431040440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2431040440 is an abundant number, since it is smaller than the sum of its proper divisors (3038800640).

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

2431040440 is a wasteful number, since it uses less digits than its factorization.

2431040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60776022 (or 60776018 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2431040440 is about 49305.5822397424. The cubic root of 2431040440 is about 1344.6132744797.

Adding to 2431040440 its reverse (440401342), we get a palindrome (2871441782).

The spelling of 2431040440 in words is "two billion, four hundred thirty-one million, forty thousand, four hundred forty".