199442066 has 8 divisors (see below), whose sum is σ = 304233840. Its totient is φ = 98030788.

The previous prime is 199442027. The next prime is 199442071. The reversal of 199442066 is 660244991.

199442066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844976 + ... + 845211.

It is an arithmetic number, because the mean of its divisors is an integer number (38029230).

Almost surely, 2^199442066 is an apocalyptic number.

199442066 is a deficient number, since it is larger than the sum of its proper divisors (104791774).

199442066 is a wasteful number, since it uses less digits than its factorization.

199442066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690248.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 199442066 is about 14122.3959015459. The cubic root of 199442066 is about 584.2592382095.

The spelling of 199442066 in words is "one hundred ninety-nine million, four hundred forty-two thousand, sixty-six".