823440022 has 16 divisors (see below), whose sum is σ = 1242430992. Its totient is φ = 409304160.

The previous prime is 823440019. The next prime is 823440029. The reversal of 823440022 is 220044328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823440029) 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 7 ways as a sum of consecutive naturals, for example, 257272 + ... + 260452.

It is an arithmetic number, because the mean of its divisors is an integer number (77651937).

Almost surely, 2^823440022 is an apocalyptic number.

823440022 is a deficient number, since it is larger than the sum of its proper divisors (418990970).

823440022 is a wasteful number, since it uses less digits than its factorization.

823440022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 823440022 is about 28695.6446521071. The cubic root of 823440022 is about 937.2972089255.

The spelling of 823440022 in words is "eight hundred twenty-three million, four hundred forty thousand, twenty-two".