45822 has 16 divisors (see below), whose sum is σ = 104832. Its totient is φ = 13080.

The previous prime is 45821. The next prime is 45823. The reversal of 45822 is 22854.

It is an interprime number because it is at equal distance from previous prime (45821) and next prime (45823).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504 + ... + 587.

It is an arithmetic number, because the mean of its divisors is an integer number (6552).

2⁴⁵⁸²² is an apocalyptic number.

45822 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

45822 is an abundant number, since it is smaller than the sum of its proper divisors (59010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52416).

45822 is a wasteful number, since it uses less digits than its factorization.

45822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

The product of its digits is 640, while the sum is 21.

The square root of 45822 is about 214.0607390439. The cubic root of 45822 is about 35.7842028449.

The spelling of 45822 in words is "forty-five thousand, eight hundred twenty-two".