1422036 has 144 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 349920.

The previous prime is 1422023. The next prime is 1422061. The reversal of 1422036 is 6302241.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 74835 + ... + 74853.

2^1422036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446080).

1422036 is an abundant number, since it is smaller than the sum of its proper divisors (3470124).

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

1422036 is a wasteful number, since it uses less digits than its factorization.

1422036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1422036 is about 1192.4915094037. The cubic root of 1422036 is about 112.4527801831.

Adding to 1422036 its reverse (6302241), we get a palindrome (7724277).

The spelling of 1422036 in words is "one million, four hundred twenty-two thousand, thirty-six".