2240340440 has 64 divisors (see below), whose sum is σ = 5446042560. Its totient is φ = 824532480.

The previous prime is 2240340391. The next prime is 2240340497. The reversal of 2240340440 is 440430422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158045 + ... + 171635.

It is an arithmetic number, because the mean of its divisors is an integer number (85094415).

Almost surely, 2^2240340440 is an apocalyptic number.

2240340440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2240340440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723021280).

2240340440 is an abundant number, since it is smaller than the sum of its proper divisors (3205702120).

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

2240340440 is a wasteful number, since it uses less digits than its factorization.

2240340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13932 (or 13928 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 2240340440 is about 47332.2346820853. The cubic root of 2240340440 is about 1308.4928065399.

Adding to 2240340440 its reverse (440430422), we get a palindrome (2680770862).

The spelling of 2240340440 in words is "two billion, two hundred forty million, three hundred forty thousand, four hundred forty".