618422 has 16 divisors (see below), whose sum is σ = 1070592. Its totient is φ = 262440.

The previous prime is 618421. The next prime is 618437. The reversal of 618422 is 224816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (66912).

2⁶¹⁸⁴²² is an apocalyptic number.

618422 is a deficient number, since it is larger than the sum of its proper divisors (452170).

618422 is a wasteful number, since it uses less digits than its factorization.

618422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443.

The product of its digits is 768, while the sum is 23.

The square root of 618422 is about 786.3981180039. The cubic root of 618422 is about 85.1977862430.

The spelling of 618422 in words is "six hundred eighteen thousand, four hundred twenty-two".