190434830 has 16 divisors (see below), whose sum is σ = 349251264. Its totient is φ = 74736480.

The previous prime is 190434823. The next prime is 190434847. The reversal of 190434830 is 38434091.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179126 + ... + 180185.

It is an arithmetic number, because the mean of its divisors is an integer number (21828204).

Almost surely, 2^190434830 is an apocalyptic number.

190434830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190434830 is a deficient number, since it is larger than the sum of its proper divisors (158816434).

190434830 is a wasteful number, since it uses less digits than its factorization.

190434830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359371.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 190434830 is about 13799.8126798881. The cubic root of 190434830 is about 575.3279339202.

The spelling of 190434830 in words is "one hundred ninety million, four hundred thirty-four thousand, eight hundred thirty".