1218494 has 8 divisors (see below), whose sum is σ = 1907280. Its totient is φ = 582736.

The previous prime is 1218487. The next prime is 1218533. The reversal of 1218494 is 4948121.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13199 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (238410).

2^1218494 is an apocalyptic number.

1218494 is a deficient number, since it is larger than the sum of its proper divisors (688786).

1218494 is a wasteful number, since it uses less digits than its factorization.

1218494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26514.

The product of its digits is 2304, while the sum is 29.

The square root of 1218494 is about 1103.8541570334. The cubic root of 1218494 is about 106.8089875401.

The spelling of 1218494 in words is "one million, two hundred eighteen thousand, four hundred ninety-four".