199012790 has 32 divisors (see below), whose sum is σ = 386700480. Its totient is φ = 73515904.

The previous prime is 199012753. The next prime is 199012823. The reversal of 199012790 is 97210991.

199012790 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 8249 + ... + 21588.

It is an arithmetic number, because the mean of its divisors is an integer number (12084390).

Almost surely, 2^199012790 is an apocalyptic number.

199012790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199012790 is a deficient number, since it is larger than the sum of its proper divisors (187687690).

199012790 is a wasteful number, since it uses less digits than its factorization.

199012790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29896.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 199012790 is about 14107.1893019127. The cubic root of 199012790 is about 583.8397536032.

The spelling of 199012790 in words is "one hundred ninety-nine million, twelve thousand, seven hundred ninety".