1218228598 has 8 divisors (see below), whose sum is σ = 1844421192. Its totient is φ = 603421536.

The previous prime is 1218228587. The next prime is 1218228611. The reversal of 1218228598 is 8958228121.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2846115 + ... + 2846542.

It is an arithmetic number, because the mean of its divisors is an integer number (230552649).

Almost surely, 2^1218228598 is an apocalyptic number.

1218228598 is a deficient number, since it is larger than the sum of its proper divisors (626192594).

1218228598 is a wasteful number, since it uses less digits than its factorization.

1218228598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692766.

The product of its digits is 184320, while the sum is 46.

The square root of 1218228598 is about 34903.1316360008. The cubic root of 1218228598 is about 1068.0123223526.

The spelling of 1218228598 in words is "one billion, two hundred eighteen million, two hundred twenty-eight thousand, five hundred ninety-eight".