198954042 has 32 divisors (see below), whose sum is σ = 459264384. Its totient is φ = 56280000.

The previous prime is 198954037. The next prime is 198954047. The reversal of 198954042 is 240459891.

It is an interprime number because it is at equal distance from previous prime (198954037) and next prime (198954047).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 198953985 and 198954003.

It is not an unprimeable number, because it can be changed into a prime (198954047) 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, 19209 + ... + 27692.

It is an arithmetic number, because the mean of its divisors is an integer number (14352012).

Almost surely, 2^198954042 is an apocalyptic number.

198954042 is an abundant number, since it is smaller than the sum of its proper divisors (260310342).

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

198954042 is a wasteful number, since it uses less digits than its factorization.

198954042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47014.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 198954042 is about 14105.1069474854. The cubic root of 198954042 is about 583.7822986804.

The spelling of 198954042 in words is "one hundred ninety-eight million, nine hundred fifty-four thousand, forty-two".