45422 has 8 divisors (see below), whose sum is σ = 73416. Its totient is φ = 20952.

The previous prime is 45413. The next prime is 45427. The reversal of 45422 is 22454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 45422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45427) by changing a digit.

45422 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 in 3 ways as a sum of consecutive naturals, for example, 848 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (9177).

2⁴⁵⁴²² is an apocalyptic number.

45422 is a deficient number, since it is larger than the sum of its proper divisors (27994).

45422 is a wasteful number, since it uses less digits than its factorization.

45422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its digits is 320, while the sum is 17.

The square root of 45422 is about 213.1243768319. The cubic root of 45422 is about 35.6797731356.

Adding to 45422 its reverse (22454), we get a palindrome (67876).

The spelling of 45422 in words is "forty-five thousand, four hundred twenty-two".