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1422 = 23279
BaseRepresentation
bin10110001110
31221200
4112032
521142
610330
74101
oct2616
91850
101422
111083
129a6
13855
14738
1564c
hex58e

1422 has 12 divisors (see below), whose sum is σ = 3120. Its totient is φ = 468.

The previous prime is 1409. The next prime is 1423. The reversal of 1422 is 2241.

Adding to 1422 its reverse (2241), we get a palindrome (3663).

It can be divided in two parts, 142 and 2, that added together give a square (144 = 122).

It is a Harshad number since it is a multiple of its sum of digits (9).

1422 is a modest number, since divided by 22 gives 14 as remainder.

It is a plaindrome in base 16.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423) by changing a digit.

1422 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 5 ways as a sum of consecutive naturals, for example, 22 + ... + 57.

It is an arithmetic number, because the mean of its divisors is an integer number (260).

21422 is an apocalyptic number.

1422 is an abundant number, since it is smaller than the sum of its proper divisors (1698).

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

1422 is a wasteful number, since it uses less digits than its factorization.

1422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 84 counting only the distinct ones).

The product of its digits is 16, while the sum is 9.

The square root of 1422 is about 37.7094152699. The cubic root of 1422 is about 11.2451831231.

The spelling of 1422 in words is "one thousand, four hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 3 6 9 18 79 158 237 474 711 1422