1171422 has 40 divisors (see below), whose sum is σ = 3002736. Its totient is φ = 334368.

The previous prime is 1171421. The next prime is 1171427. The reversal of 1171422 is 2241711.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1171395 and 1171404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171421) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 618 + ... + 1650.

2^1171422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501368).

1171422 is an abundant number, since it is smaller than the sum of its proper divisors (1831314).

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

1171422 is a wasteful number, since it uses less digits than its factorization.

1171422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1045 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1171422 is about 1082.3225027689. The cubic root of 1171422 is about 105.4154965231.

The spelling of 1171422 in words is "one million, one hundred seventy-one thousand, four hundred twenty-two".