199542246 has 8 divisors (see below), whose sum is σ = 399084504. Its totient is φ = 66514080.

The previous prime is 199542241. The next prime is 199542247. The reversal of 199542246 is 642245991.

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

199542246 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 199542198 and 199542207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199542241) 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, 16628515 + ... + 16628526.

It is an arithmetic number, because the mean of its divisors is an integer number (49885563).

Almost surely, 2^199542246 is an apocalyptic number.

199542246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

199542246 is a wasteful number, since it uses less digits than its factorization.

199542246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33257046.

The product of its digits is 155520, while the sum is 42.

The square root of 199542246 is about 14125.9423048517. The cubic root of 199542246 is about 584.3570465511.

The spelling of 199542246 in words is "one hundred ninety-nine million, five hundred forty-two thousand, two hundred forty-six".