1423918 has 4 divisors (see below), whose sum is σ = 2135880. Its totient is φ = 711958.

The previous prime is 1423909. The next prime is 1423921. The reversal of 1423918 is 8193241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355978 + ... + 355981.

It is an arithmetic number, because the mean of its divisors is an integer number (533970).

2^1423918 is an apocalyptic number.

1423918 is a deficient number, since it is larger than the sum of its proper divisors (711962).

1423918 is an equidigital number, since it uses as much as digits as its factorization.

1423918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711961.

The product of its digits is 1728, while the sum is 28.

The square root of 1423918 is about 1193.2803526414. The cubic root of 1423918 is about 112.5023670284.

It can be divided in two parts, 14 and 23918, that added together give a palindrome (23932).

The spelling of 1423918 in words is "one million, four hundred twenty-three thousand, nine hundred eighteen".