199230494 has 4 divisors (see below), whose sum is σ = 298845744. Its totient is φ = 99615246.

The previous prime is 199230487. The next prime is 199230511. The reversal of 199230494 is 494032991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494032991 = 37 ⋅13352243.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49807622 + ... + 49807625.

It is an arithmetic number, because the mean of its divisors is an integer number (74711436).

Almost surely, 2^199230494 is an apocalyptic number.

199230494 is a deficient number, since it is larger than the sum of its proper divisors (99615250).

199230494 is an equidigital number, since it uses as much as digits as its factorization.

199230494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99615249.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 199230494 is about 14114.9032586129. The cubic root of 199230494 is about 584.0525672798.

The spelling of 199230494 in words is "one hundred ninety-nine million, two hundred thirty thousand, four hundred ninety-four".