427191934 has 32 divisors (see below), whose sum is σ = 729308160. Its totient is φ = 186040800.

The previous prime is 427191931. The next prime is 427191959. The reversal of 427191934 is 439191724.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427191931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132279 + ... + 135469.

It is an arithmetic number, because the mean of its divisors is an integer number (22790880).

Almost surely, 2^427191934 is an apocalyptic number.

427191934 is a deficient number, since it is larger than the sum of its proper divisors (302116226).

427191934 is a wasteful number, since it uses less digits than its factorization.

427191934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496.

The product of its digits is 54432, while the sum is 40.

The square root of 427191934 is about 20668.6219666431. The cubic root of 427191934 is about 753.1376310939.

The spelling of 427191934 in words is "four hundred twenty-seven million, one hundred ninety-one thousand, nine hundred thirty-four".