845574222 has 16 divisors (see below), whose sum is σ = 1707893712. Its totient is φ = 279067200.

The previous prime is 845574221. The next prime is 845574251. The reversal of 845574222 is 222475548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845574221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697063 + ... + 698274.

It is an arithmetic number, because the mean of its divisors is an integer number (106743357).

Almost surely, 2^845574222 is an apocalyptic number.

845574222 is an abundant number, since it is smaller than the sum of its proper divisors (862319490).

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

845574222 is a wasteful number, since it uses less digits than its factorization.

845574222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395443.

The product of its digits is 179200, while the sum is 39.

The square root of 845574222 is about 29078.7589487585. The cubic root of 845574222 is about 945.6212974330.

The spelling of 845574222 in words is "eight hundred forty-five million, five hundred seventy-four thousand, two hundred twenty-two".