1423438 has 8 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 694320.

The previous prime is 1423417. The next prime is 1423439. The reversal of 1423438 is 8343241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423439) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8598 + ... + 8761.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

2^1423438 is an apocalyptic number.

1423438 is a deficient number, since it is larger than the sum of its proper divisors (763922).

1423438 is a wasteful number, since it uses less digits than its factorization.

1423438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17402.

The product of its digits is 2304, while the sum is 25.

The square root of 1423438 is about 1193.0792094408. The cubic root of 1423438 is about 112.4897241643.

Adding to 1423438 its reverse (8343241), we get a palindrome (9766679).

The spelling of 1423438 in words is "one million, four hundred twenty-three thousand, four hundred thirty-eight".