1218449098 has 8 divisors (see below), whose sum is σ = 1828034208. Its totient is φ = 609104364.

The previous prime is 1218449083. The next prime is 1218449101. The reversal of 1218449098 is 8909448121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46836 + ... + 68047.

It is an arithmetic number, because the mean of its divisors is an integer number (228504276).

Almost surely, 2^1218449098 is an apocalyptic number.

1218449098 is a deficient number, since it is larger than the sum of its proper divisors (609585110).

1218449098 is a wasteful number, since it uses less digits than its factorization.

1218449098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120188.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 1218449098 is about 34906.2902354289. The cubic root of 1218449098 is about 1068.0767553911.

The spelling of 1218449098 in words is "one billion, two hundred eighteen million, four hundred forty-nine thousand, ninety-eight".