199478276 has 6 divisors (see below), whose sum is σ = 349086990. Its totient is φ = 99739136.

The previous prime is 199478249. The next prime is 199478297. The reversal of 199478276 is 672874991.

It can be written as a sum of positive squares in only one way, i.e., 196840900 + 2637376 = 14030^2 + 1624^2 .

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 as a sum of consecutive naturals, namely, 24934781 + ... + 24934788.

It is an arithmetic number, because the mean of its divisors is an integer number (58181165).

Almost surely, 2^199478276 is an apocalyptic number.

It is an amenable number.

199478276 is a deficient number, since it is larger than the sum of its proper divisors (149608714).

199478276 is a wasteful number, since it uses less digits than its factorization.

199478276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49869573 (or 49869571 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 199478276 is about 14123.6778496254. The cubic root of 199478276 is about 584.2945947540.

The spelling of 199478276 in words is "one hundred ninety-nine million, four hundred seventy-eight thousand, two hundred seventy-six".