318422 has 16 divisors (see below), whose sum is σ = 529872. Its totient is φ = 142560.

The previous prime is 318419. The next prime is 318431. The reversal of 318422 is 224813.

It is a junction number, because it is equal to n+sod(n) for n = 318394 and 318403.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 318422.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797 + ... + 1127.

It is an arithmetic number, because the mean of its divisors is an integer number (33117).

2³¹⁸⁴²² is an apocalyptic number.

318422 is a deficient number, since it is larger than the sum of its proper divisors (211450).

318422 is a wasteful number, since it uses less digits than its factorization.

318422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its digits is 384, while the sum is 20.

The square root of 318422 is about 564.2889330830. The cubic root of 318422 is about 68.2864216323.

The spelling of 318422 in words is "three hundred eighteen thousand, four hundred twenty-two".