199766046 has 32 divisors (see below), whose sum is σ = 422028288. Its totient is φ = 62939520.

The previous prime is 199766011. The next prime is 199766053. The reversal of 199766046 is 640667991.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 199765986 and 199766004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4491 + ... + 20486.

It is an arithmetic number, because the mean of its divisors is an integer number (13188384).

Almost surely, 2^199766046 is an apocalyptic number.

199766046 is an abundant number, since it is smaller than the sum of its proper divisors (222262242).

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

199766046 is a wasteful number, since it uses less digits than its factorization.

199766046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25056.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 199766046 is about 14133.8616803760. The cubic root of 199766046 is about 584.5754301225.

The spelling of 199766046 in words is "one hundred ninety-nine million, seven hundred sixty-six thousand, forty-six".