1218498 has 16 divisors (see below), whose sum is σ = 2448576. Its totient is φ = 404240.

The previous prime is 1218487. The next prime is 1218533. The reversal of 1218498 is 8948121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540 + ... + 2192.

It is an arithmetic number, because the mean of its divisors is an integer number (153036).

2^1218498 is an apocalyptic number.

1218498 is an abundant number, since it is smaller than the sum of its proper divisors (1230078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1218498 is a wasteful number, since it uses less digits than its factorization.

1218498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its digits is 4608, while the sum is 33.

The square root of 1218498 is about 1103.8559688655. The cubic root of 1218498 is about 106.8091044154.

The spelling of 1218498 in words is "one million, two hundred eighteen thousand, four hundred ninety-eight".