199370494 has 4 divisors (see below), whose sum is σ = 299055744. Its totient is φ = 99685246.

The previous prime is 199370491. The next prime is 199370503. The reversal of 199370494 is 494073991.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199370491) by changing a digit.

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 as a sum of consecutive naturals, namely, 49842622 + ... + 49842625.

It is an arithmetic number, because the mean of its divisors is an integer number (74763936).

Almost surely, 2^199370494 is an apocalyptic number.

199370494 is a deficient number, since it is larger than the sum of its proper divisors (99685250).

199370494 is an equidigital number, since it uses as much as digits as its factorization.

199370494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99685249.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 199370494 is about 14119.8616848750. The cubic root of 199370494 is about 584.1893405426.

The spelling of 199370494 in words is "one hundred ninety-nine million, three hundred seventy thousand, four hundred ninety-four".