190779434 has 8 divisors (see below), whose sum is σ = 298611360. Its totient is φ = 91242316.

The previous prime is 190779431. The next prime is 190779443. The reversal of 190779434 is 434977091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (190779431) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2073644 + ... + 2073735.

It is an arithmetic number, because the mean of its divisors is an integer number (37326420).

Almost surely, 2^190779434 is an apocalyptic number.

190779434 is a deficient number, since it is larger than the sum of its proper divisors (107831926).

190779434 is a wasteful number, since it uses less digits than its factorization.

190779434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147404.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 190779434 is about 13812.2928581753. The cubic root of 190779434 is about 575.6747556985.

The spelling of 190779434 in words is "one hundred ninety million, seven hundred seventy-nine thousand, four hundred thirty-four".