197899042 has 8 divisors (see below), whose sum is σ = 323834832. Its totient is φ = 89954100.

The previous prime is 197899033. The next prime is 197899043. The reversal of 197899042 is 240998791.

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

It is not an unprimeable number, because it can be changed into a prime (197899043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4497684 + ... + 4497727.

It is an arithmetic number, because the mean of its divisors is an integer number (40479354).

Almost surely, 2^197899042 is an apocalyptic number.

197899042 is a deficient number, since it is larger than the sum of its proper divisors (125935790).

197899042 is a wasteful number, since it uses less digits than its factorization.

197899042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8995424.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 197899042 is about 14067.6594357413. The cubic root of 197899042 is about 582.7485889668.

The spelling of 197899042 in words is "one hundred ninety-seven million, eight hundred ninety-nine thousand, forty-two".