1423422 has 96 divisors (see below), whose sum is σ = 4193280. Its totient is φ = 336960.

The previous prime is 1423417. The next prime is 1423439. The reversal of 1423422 is 2243241.

It is a super-2 number, since 2×1423422² = 4052260380168, which contains 22 as substring.

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 = 1423395 and 1423404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17979 + ... + 18057.

It is an arithmetic number, because the mean of its divisors is an integer number (43680).

2^1423422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2096640).

1423422 is an abundant number, since it is smaller than the sum of its proper divisors (2769858).

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

1423422 is a wasteful number, since it uses less digits than its factorization.

1423422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 115 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 1423422 is about 1193.0725040835. The cubic root of 1423422 is about 112.4893026866.

Adding to 1423422 its reverse (2243241), we get a palindrome (3666663).

It can be divided in two parts, 14 and 23422, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 1423422 in words is "one million, four hundred twenty-three thousand, four hundred twenty-two".