198612429 has 16 divisors (see below), whose sum is σ = 277107072. Its totient is φ = 126295488.

The previous prime is 198612419. The next prime is 198612431. The reversal of 198612429 is 924216891.

It is not a de Polignac number, because 198612429 - 2⁴ = 198612413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198612419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21879 + ... + 29595.

It is an arithmetic number, because the mean of its divisors is an integer number (17319192).

Almost surely, 2^198612429 is an apocalyptic number.

It is an amenable number.

198612429 is a deficient number, since it is larger than the sum of its proper divisors (78494643).

198612429 is a wasteful number, since it uses less digits than its factorization.

198612429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116.

The product of its digits is 62208, while the sum is 42.

The square root of 198612429 is about 14092.9921947044. The cubic root of 198612429 is about 583.4479804773.

The spelling of 198612429 in words is "one hundred ninety-eight million, six hundred twelve thousand, four hundred twenty-nine".