1423418 has 4 divisors (see below), whose sum is σ = 2135130. Its totient is φ = 711708.

The previous prime is 1423417. The next prime is 1423439. The reversal of 1423418 is 8143241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8143241 = 79 ⋅103079.

It can be written as a sum of positive squares in only one way, i.e., 1423249 + 169 = 1193^2 + 13^2 .

It is a super-2 number, since 2×1423418² = 4052237605448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1423393 and 1423402.

It is not an unprimeable number, because it can be changed into a prime (1423417) 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 as a sum of consecutive naturals, namely, 355853 + ... + 355856.

2^1423418 is an apocalyptic number.

1423418 is a deficient number, since it is larger than the sum of its proper divisors (711712).

1423418 is an equidigital number, since it uses as much as digits as its factorization.

1423418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711711.

The product of its digits is 768, while the sum is 23.

The square root of 1423418 is about 1193.0708277382. The cubic root of 1423418 is about 112.4891973166.

Adding to 1423418 its reverse (8143241), we get a palindrome (9566659).

It can be divided in two parts, 14 and 23418, that added together give a palindrome (23432).

The spelling of 1423418 in words is "one million, four hundred twenty-three thousand, four hundred eighteen".