198456012 has 36 divisors (see below), whose sum is σ = 515214336. Its totient is φ = 64363680.

The previous prime is 198455993. The next prime is 198456053. The reversal of 198456012 is 210654891.

198456012 is a `hidden beast` number, since 1 + 9 + 8 + 45 + 601 + 2 = 666.

198456012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73164 + ... + 75827.

Almost surely, 2^198456012 is an apocalyptic number.

198456012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198456012 is an abundant number, since it is smaller than the sum of its proper divisors (316758324).

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

198456012 is a wasteful number, since it uses less digits than its factorization.

198456012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149038 (or 149033 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 198456012 is about 14087.4416414053. The cubic root of 198456012 is about 583.2947756464.

The spelling of 198456012 in words is "one hundred ninety-eight million, four hundred fifty-six thousand, twelve".