852221370 has 384 divisors, whose sum is σ = 2883962880. Its totient is φ = 156349440.

The previous prime is 852221329. The next prime is 852221387. The reversal of 852221370 is 73122258.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14444401 + ... + 14444459.

It is an arithmetic number, because the mean of its divisors is an integer number (7510320).

Almost surely, 2^852221370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 852221370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441981440).

852221370 is an abundant number, since it is smaller than the sum of its proper divisors (2031741510).

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

852221370 is a wasteful number, since it uses less digits than its factorization.

852221370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 852221370 is about 29192.8307979887. The cubic root of 852221370 is about 948.0927088916.

It can be divided in two parts, 8522 and 21370, that added together give a palindrome (29892).

The spelling of 852221370 in words is "eight hundred fifty-two million, two hundred twenty-one thousand, three hundred seventy".