1423242 has 24 divisors (see below), whose sum is σ = 3168516. Its totient is φ = 461376.

The previous prime is 1423237. The next prime is 1423243. The reversal of 1423242 is 2423241.

1423242 is a `hidden beast` number, since 1 + 423 + 242 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1418481 + 4761 = 1191^2 + 69^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1423243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403 + ... + 1734.

2^1423242 is an apocalyptic number.

1423242 is an abundant number, since it is smaller than the sum of its proper divisors (1745274).

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

1423242 is a wasteful number, since it uses less digits than its factorization.

1423242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182 (or 2179 counting only the distinct ones).

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

The square root of 1423242 is about 1192.9970662160. The cubic root of 1423242 is about 112.4845608442.

Adding to 1423242 its reverse (2423241), we get a palindrome (3846483).

Subtracting 1423242 from its reverse (2423241), we obtain a palindrome (999999).

The spelling of 1423242 in words is "one million, four hundred twenty-three thousand, two hundred forty-two".