4243320240 has 80 divisors (see below), whose sum is σ = 13161657600. Its totient is φ = 1130918656.

The previous prime is 4243320181. The next prime is 4243320253. The reversal of 4243320240 is 420233424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4243320240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557581 + ... + 565139.

It is an arithmetic number, because the mean of its divisors is an integer number (164520720).

Almost surely, 2^4243320240 is an apocalyptic number.

4243320240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243320240 is an abundant number, since it is smaller than the sum of its proper divisors (8918337360).

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

4243320240 is a wasteful number, since it uses less digits than its factorization.

4243320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9914 (or 9908 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 4243320240 is about 65140.7724854411. The cubic root of 4243320240 is about 1618.9568348975.

Adding to 4243320240 its reverse (420233424), we get a palindrome (4663553664).

The spelling of 4243320240 in words is "four billion, two hundred forty-three million, three hundred twenty thousand, two hundred forty".