42190198 has 4 divisors (see below), whose sum is σ = 63285300. Its totient is φ = 21095098.

The previous prime is 42190193. The next prime is 42190199. The reversal of 42190198 is 89109124.

42190198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42190193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10547548 + ... + 10547551.

It is an arithmetic number, because the mean of its divisors is an integer number (15821325).

Almost surely, 2^42190198 is an apocalyptic number.

42190198 is a deficient number, since it is larger than the sum of its proper divisors (21095102).

42190198 is a wasteful number, since it uses less digits than its factorization.

42190198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21095101.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 42190198 is about 6495.3982171996. The cubic root of 42190198 is about 348.1265834038.

The spelling of 42190198 in words is "forty-two million, one hundred ninety thousand, one hundred ninety-eight".