2209342 has 4 divisors (see below), whose sum is σ = 3314016. Its totient is φ = 1104670.

The previous prime is 2209331. The next prime is 2209343. The reversal of 2209342 is 2439022.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552334 + ... + 552337.

It is an arithmetic number, because the mean of its divisors is an integer number (828504).

2^2209342 is an apocalyptic number.

2209342 is a deficient number, since it is larger than the sum of its proper divisors (1104674).

2209342 is a wasteful number, since it uses less digits than its factorization.

2209342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104673.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2209342 is about 1486.3855489071. The cubic root of 2209342 is about 130.2429775306.

The spelling of 2209342 in words is "two million, two hundred nine thousand, three hundred forty-two".