4221242340 has 96 divisors (see below), whose sum is σ = 13558185984. Its totient is φ = 961269120.

The previous prime is 4221242329. The next prime is 4221242353. The reversal of 4221242340 is 432421224.

It is a self number, because there is not a number n which added to its sum of digits gives 4221242340.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 95277 + ... + 132363.

It is an arithmetic number, because the mean of its divisors is an integer number (141231104).

Almost surely, 2^4221242340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221242340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6779092992).

4221242340 is an abundant number, since it is smaller than the sum of its proper divisors (9336943644).

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

4221242340 is a wasteful number, since it uses less digits than its factorization.

4221242340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37377 (or 37375 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4221242340 is about 64971.0884932675. The cubic root of 4221242340 is about 1616.1441524391.

Adding to 4221242340 its reverse (432421224), we get a palindrome (4653663564).

The spelling of 4221242340 in words is "four billion, two hundred twenty-one million, two hundred forty-two thousand, three hundred forty".