4247923820 has 96 divisors (see below), whose sum is σ = 10668284928. Its totient is φ = 1389180672.

The previous prime is 4247923819. The next prime is 4247923847. The reversal of 4247923820 is 283297424.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1276679 + ... + 1280001.

It is an arithmetic number, because the mean of its divisors is an integer number (111127968).

Almost surely, 2^4247923820 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 4247923820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5334142464).

4247923820 is an abundant number, since it is smaller than the sum of its proper divisors (6420361108).

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

4247923820 is a wasteful number, since it uses less digits than its factorization.

4247923820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759 (or 3757 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 4247923820 is about 65176.0985331279. The cubic root of 4247923820 is about 1619.5420922946.

The spelling of 4247923820 in words is "four billion, two hundred forty-seven million, nine hundred twenty-three thousand, eight hundred twenty".