4240323440 has 40 divisors (see below), whose sum is σ = 9861474480. Its totient is φ = 1695661056.

The previous prime is 4240323427. The next prime is 4240323449. The reversal of 4240323440 is 443230424.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240323449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522131 + ... + 530189.

It is an arithmetic number, because the mean of its divisors is an integer number (246536862).

Almost surely, 2^4240323440 is an apocalyptic number.

4240323440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4240323440 is an abundant number, since it is smaller than the sum of its proper divisors (5621151040).

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

4240323440 is a wasteful number, since it uses less digits than its factorization.

4240323440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14649 (or 14643 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 4240323440 is about 65117.7659321940. The cubic root of 4240323440 is about 1618.5756214319.

Adding to 4240323440 its reverse (443230424), we get a palindrome (4683553864).

The spelling of 4240323440 in words is "four billion, two hundred forty million, three hundred twenty-three thousand, four hundred forty".