199942704 has 180 divisors, whose sum is σ = 629015296. Its totient is φ = 58931712.

The previous prime is 199942679. The next prime is 199942727. The reversal of 199942704 is 407249991.

It is a happy number.

199942704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 199942704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1574289 + ... + 1574415.

Almost surely, 2^199942704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199942704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314507648).

199942704 is an abundant number, since it is smaller than the sum of its proper divisors (429072592).

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

199942704 is a wasteful number, since it uses less digits than its factorization.

199942704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 199942704 is about 14140.1097591214. The cubic root of 199942704 is about 584.7476974688.

The spelling of 199942704 in words is "one hundred ninety-nine million, nine hundred forty-two thousand, seven hundred four".