12998018 has 8 divisors (see below), whose sum is σ = 21269520. Its totient is φ = 5908180.

The previous prime is 12997987. The next prime is 12998053. The reversal of 12998018 is 81089921.

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, 295388 + ... + 295431.

It is an arithmetic number, because the mean of its divisors is an integer number (2658690).

Almost surely, 2^12998018 is an apocalyptic number.

12998018 is a deficient number, since it is larger than the sum of its proper divisors (8271502).

12998018 is a wasteful number, since it uses less digits than its factorization.

12998018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590832.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 12998018 is about 3605.2764110398. The cubic root of 12998018 is about 235.1215185613.

The spelling of 12998018 in words is "twelve million, nine hundred ninety-eight thousand, eighteen".