4222531820 has 48 divisors (see below), whose sum is σ = 9964624320. Its totient is φ = 1491300096.

The previous prime is 4222531801. The next prime is 4222531849. The reversal of 4222531820 is 281352224.

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, 347075 + ... + 359034.

It is an arithmetic number, because the mean of its divisors is an integer number (207596340).

Almost surely, 2^4222531820 is an apocalyptic number.

It is an amenable number.

4222531820 is an abundant number, since it is smaller than the sum of its proper divisors (5742092500).

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

4222531820 is a wasteful number, since it uses less digits than its factorization.

4222531820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706154 (or 706152 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 4222531820 is about 64981.0112263575. The cubic root of 4222531820 is about 1616.3086990527.

The spelling of 4222531820 in words is "four billion, two hundred twenty-two million, five hundred thirty-one thousand, eight hundred twenty".