822173340 has 48 divisors (see below), whose sum is σ = 2303788032. Its totient is φ = 219084096.

The previous prime is 822173299. The next prime is 822173347. The reversal of 822173340 is 43371228.

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

It is a junction number, because it is equal to n+sod(n) for n = 822173298 and 822173307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822173347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92157 + ... + 100683.

It is an arithmetic number, because the mean of its divisors is an integer number (47995584).

Almost surely, 2^822173340 is an apocalyptic number.

It is an amenable number.

822173340 is an abundant number, since it is smaller than the sum of its proper divisors (1481614692).

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

822173340 is a wasteful number, since it uses less digits than its factorization.

822173340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10146 (or 10144 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 822173340 is about 28673.5651777033. The cubic root of 822173340 is about 936.8163535016.

The spelling of 822173340 in words is "eight hundred twenty-two million, one hundred seventy-three thousand, three hundred forty".