1118278298 has 8 divisors (see below), whose sum is σ = 1677621792. Its totient is φ = 559071036.

The previous prime is 1118278297. The next prime is 1118278327. The reversal of 1118278298 is 8928728111.

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 (1118278297) 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, 10190 + ... + 48377.

It is an arithmetic number, because the mean of its divisors is an integer number (209702724).

Almost surely, 2^1118278298 is an apocalyptic number.

1118278298 is a deficient number, since it is larger than the sum of its proper divisors (559343494).

1118278298 is an equidigital number, since it uses as much as digits as its factorization.

1118278298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116.

The product of its digits is 129024, while the sum is 47.

The square root of 1118278298 is about 33440.6683246612. The cubic root of 1118278298 is about 1037.9664089228.

The spelling of 1118278298 in words is "one billion, one hundred eighteen million, two hundred seventy-eight thousand, two hundred ninety-eight".