8400822 has 16 divisors (see below), whose sum is σ = 17790192. Its totient is φ = 2635520.

The previous prime is 8400811. The next prime is 8400823. The reversal of 8400822 is 2280048.

It is a junction number, because it is equal to n+sod(n) for n = 8400792 and 8400801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41079 + ... + 41282.

It is an arithmetic number, because the mean of its divisors is an integer number (1111887).

Almost surely, 2^8400822 is an apocalyptic number.

8400822 is an abundant number, since it is smaller than the sum of its proper divisors (9389370).

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

8400822 is a wasteful number, since it uses less digits than its factorization.

8400822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82383.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 8400822 is about 2898.4171542413. The cubic root of 8400822 is about 203.2859019229.

The spelling of 8400822 in words is "eight million, four hundred thousand, eight hundred twenty-two".