312000198 has 32 divisors (see below), whose sum is σ = 654780672. Its totient is φ = 98920800.

The previous prime is 312000193. The next prime is 312000223. The reversal of 312000198 is 891000213.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312000193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18733 + ... + 31223.

It is an arithmetic number, because the mean of its divisors is an integer number (20461896).

Almost surely, 2^312000198 is an apocalyptic number.

312000198 is an abundant number, since it is smaller than the sum of its proper divisors (342780474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312000198 is a wasteful number, since it uses less digits than its factorization.

312000198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12700.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 312000198 is about 17663.5273374261. The cubic root of 312000198 is about 678.2424320771.

The spelling of 312000198 in words is "three hundred twelve million, one hundred ninety-eight", and thus it is an aban number.