427218574 has 4 divisors (see below), whose sum is σ = 640827864. Its totient is φ = 213609286.

The previous prime is 427218569. The next prime is 427218581. The reversal of 427218574 is 475812724.

It is a semiprime because it is the product of two primes.

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 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 as a sum of consecutive naturals, namely, 106804642 + ... + 106804645.

It is an arithmetic number, because the mean of its divisors is an integer number (160206966).

Almost surely, 2^427218574 is an apocalyptic number.

427218574 is a deficient number, since it is larger than the sum of its proper divisors (213609290).

427218574 is a wasteful number, since it uses less digits than its factorization.

427218574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213609289.

The product of its digits is 125440, while the sum is 40.

The square root of 427218574 is about 20669.2664117525. The cubic root of 427218574 is about 753.1532861721.

The spelling of 427218574 in words is "four hundred twenty-seven million, two hundred eighteen thousand, five hundred seventy-four".