823105942 has 4 divisors (see below), whose sum is σ = 1234658916. Its totient is φ = 411552970.

The previous prime is 823105939. The next prime is 823105951. The reversal of 823105942 is 249501328.

823105942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 823105898 and 823105907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205776484 + ... + 205776487.

It is an arithmetic number, because the mean of its divisors is an integer number (308664729).

Almost surely, 2^823105942 is an apocalyptic number.

823105942 is a deficient number, since it is larger than the sum of its proper divisors (411552974).

823105942 is a wasteful number, since it uses less digits than its factorization.

823105942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411552973.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 823105942 is about 28689.8229691297. The cubic root of 823105942 is about 937.1704340137.

The spelling of 823105942 in words is "eight hundred twenty-three million, one hundred five thousand, nine hundred forty-two".