2309822 has 4 divisors (see below), whose sum is σ = 3464736. Its totient is φ = 1154910.

The previous prime is 2309803. The next prime is 2309837. The reversal of 2309822 is 2289032.

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 = 2309791 and 2309800.

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, 577454 + ... + 577457.

It is an arithmetic number, because the mean of its divisors is an integer number (866184).

2^2309822 is an apocalyptic number.

2309822 is a deficient number, since it is larger than the sum of its proper divisors (1154914).

2309822 is a wasteful number, since it uses less digits than its factorization.

2309822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154913.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2309822 is about 1519.8098565281. The cubic root of 2309822 is about 132.1882453426.

The spelling of 2309822 in words is "two million, three hundred nine thousand, eight hundred twenty-two".