1218398962 has 8 divisors (see below), whose sum is σ = 1993743792. Its totient is φ = 553817700.

The previous prime is 1218398897. The next prime is 1218398977. The reversal of 1218398962 is 2698938121.

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

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, 27690864 + ... + 27690907.

It is an arithmetic number, because the mean of its divisors is an integer number (249217974).

Almost surely, 2^1218398962 is an apocalyptic number.

1218398962 is a deficient number, since it is larger than the sum of its proper divisors (775344830).

1218398962 is a wasteful number, since it uses less digits than its factorization.

1218398962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55381784.

The product of its digits is 373248, while the sum is 49.

The square root of 1218398962 is about 34905.5720766757. The cubic root of 1218398962 is about 1068.0621056666.

The spelling of 1218398962 in words is "one billion, two hundred eighteen million, three hundred ninety-eight thousand, nine hundred sixty-two".