1423538 has 8 divisors (see below), whose sum is σ = 2193132. Its totient is φ = 692496.

The previous prime is 1423511. The next prime is 1423547. The reversal of 1423538 is 8353241.

It can be written as a sum of positive squares in 2 ways, for example, as 1423249 + 289 = 1193^2 + 17^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 9545 + ... + 9692.

2^1423538 is an apocalyptic number.

1423538 is a deficient number, since it is larger than the sum of its proper divisors (769594).

1423538 is a wasteful number, since it uses less digits than its factorization.

1423538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19276.

The product of its digits is 2880, while the sum is 26.

The square root of 1423538 is about 1193.1211170707. The cubic root of 1423538 is about 112.4923583287.

Adding to 1423538 its reverse (8353241), we get a palindrome (9776779).

The spelling of 1423538 in words is "one million, four hundred twenty-three thousand, five hundred thirty-eight".