8572223420 has 48 divisors (see below), whose sum is σ = 18581736096. Its totient is φ = 3319680000.

The previous prime is 8572223417. The next prime is 8572223423. The reversal of 8572223420 is 243222758.

It is an interprime number because it is at equal distance from previous prime (8572223417) and next prime (8572223423).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8572223423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67520 + ... + 147320.

It is an arithmetic number, because the mean of its divisors is an integer number (387119502).

Almost surely, 2^8572223420 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 8572223420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9290868048).

8572223420 is an abundant number, since it is smaller than the sum of its proper divisors (10009512676).

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

8572223420 is a wasteful number, since it uses less digits than its factorization.

8572223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79982 (or 79980 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 8572223420 is about 92586.3025506473. The cubic root of 8572223420 is about 2046.5914740112.

The spelling of 8572223420 in words is "eight billion, five hundred seventy-two million, two hundred twenty-three thousand, four hundred twenty".