1421318 has 8 divisors (see below), whose sum is σ = 2189712. Its totient is φ = 691416.

The previous prime is 1421317. The next prime is 1421339. The reversal of 1421318 is 8131241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1421318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9530 + ... + 9677.

It is an arithmetic number, because the mean of its divisors is an integer number (273714).

2^1421318 is an apocalyptic number.

1421318 is a deficient number, since it is larger than the sum of its proper divisors (768394).

1421318 is a wasteful number, since it uses less digits than its factorization.

1421318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19246.

The product of its digits is 192, while the sum is 20.

The square root of 1421318 is about 1192.1904210318. The cubic root of 1421318 is about 112.4338508243.

Adding to 1421318 its reverse (8131241), we get a palindrome (9552559).

The spelling of 1421318 in words is "one million, four hundred twenty-one thousand, three hundred eighteen".