12090198 has 8 divisors (see below), whose sum is σ = 24180408. Its totient is φ = 4030064.

The previous prime is 12090173. The next prime is 12090229. The reversal of 12090198 is 89109021.

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

12090198 is an admirable number.

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, 1007511 + ... + 1007522.

It is an arithmetic number, because the mean of its divisors is an integer number (3022551).

Almost surely, 2^12090198 is an apocalyptic number.

12090198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12090198 is a wasteful number, since it uses less digits than its factorization.

12090198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015038.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 12090198 is about 3477.0962022929. The cubic root of 12090198 is about 229.5150335935.

The spelling of 12090198 in words is "twelve million, ninety thousand, one hundred ninety-eight".