199766004 has 24 divisors (see below), whose sum is σ = 470479968. Its totient is φ = 65965920.

The previous prime is 199765921. The next prime is 199766011. The reversal of 199766004 is 400667991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76507 + ... + 79074.

It is an arithmetic number, because the mean of its divisors is an integer number (19603332).

Almost surely, 2^199766004 is an apocalyptic number.

It is an amenable number.

199766004 is an abundant number, since it is smaller than the sum of its proper divisors (270713964).

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

199766004 is a wasteful number, since it uses less digits than its factorization.

199766004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155695 (or 155693 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 199766004 is about 14133.8601945824. The cubic root of 199766004 is about 584.5753891542.

The spelling of 199766004 in words is "one hundred ninety-nine million, seven hundred sixty-six thousand, four".