1098218 has 8 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 499180.

The previous prime is 1098211. The next prime is 1098221. The reversal of 1098218 is 8128901.

1098218 = 297² + 298² + ... + 308².

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

It is not an unprimeable number, because it can be changed into a prime (1098211) 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, 24938 + ... + 24981.

It is an arithmetic number, because the mean of its divisors is an integer number (224640).

2^1098218 is an apocalyptic number.

1098218 is a deficient number, since it is larger than the sum of its proper divisors (698902).

1098218 is a wasteful number, since it uses less digits than its factorization.

1098218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49932.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1098218 is about 1047.9589686624. The cubic root of 1098218 is about 103.1722382910.

The spelling of 1098218 in words is "one million, ninety-eight thousand, two hundred eighteen".