4391372220 has 24 divisors (see below), whose sum is σ = 12295842384. Its totient is φ = 1171032576.

The previous prime is 4391372173. The next prime is 4391372231. The reversal of 4391372220 is 222731934.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 36594709 + ... + 36594828.

It is an arithmetic number, because the mean of its divisors is an integer number (512326766).

Almost surely, 2^4391372220 is an apocalyptic number.

It is an amenable number.

4391372220 is an abundant number, since it is smaller than the sum of its proper divisors (7904470164).

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

4391372220 is a wasteful number, since it uses less digits than its factorization.

4391372220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73189549 (or 73189547 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 4391372220 is about 66267.4295563062. The cubic root of 4391372220 is about 1637.5707913377.

The spelling of 4391372220 in words is "four billion, three hundred ninety-one million, three hundred seventy-two thousand, two hundred twenty".