4221662500 has 72 divisors (see below), whose sum is σ = 10074105216. Its totient is φ = 1535100000.

The previous prime is 4221662453. The next prime is 4221662509. The reversal of 4221662500 is 52661224.

It is not an unprimeable number, because it can be changed into a prime (4221662509) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 122149 + ... + 152851.

It is an arithmetic number, because the mean of its divisors is an integer number (139918128).

Almost surely, 2^4221662500 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 4221662500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5037052608).

4221662500 is an abundant number, since it is smaller than the sum of its proper divisors (5852442716).

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

4221662500 is a wasteful number, since it uses less digits than its factorization.

4221662500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30743 (or 30721 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 4221662500 is about 64974.3218510205. The cubic root of 4221662500 is about 1616.1977714565.

The spelling of 4221662500 in words is "four billion, two hundred twenty-one million, six hundred sixty-two thousand, five hundred".