22942 has 4 divisors (see below), whose sum is σ = 34416. Its totient is φ = 11470.

The previous prime is 22937. The next prime is 22943. The reversal of 22942 is 24922.

It is a happy number.

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

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22943) by changing a digit.

22942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5734 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (8604).

2²²⁹⁴² is an apocalyptic number.

22942 is a deficient number, since it is larger than the sum of its proper divisors (11474).

22942 is a wasteful number, since it uses less digits than its factorization.

22942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11473.

The product of its digits is 288, while the sum is 19.

The square root of 22942 is about 151.4661678396. The cubic root of 22942 is about 28.4147447075.

The spelling of 22942 in words is "twenty-two thousand, nine hundred forty-two".