427188994 has 8 divisors (see below), whose sum is σ = 647128188. Its totient is φ = 211479600.

The previous prime is 427188967. The next prime is 427189003. The reversal of 427188994 is 499881724.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 395413225 + 31775769 = 19885^2 + 5637^2 .

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

It is an unprimeable number.

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, 1057197 + ... + 1057600.

Almost surely, 2^427188994 is an apocalyptic number.

427188994 is a deficient number, since it is larger than the sum of its proper divisors (219939194).

427188994 is a wasteful number, since it uses less digits than its factorization.

427188994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114900.

The product of its digits is 1161216, while the sum is 52.

The square root of 427188994 is about 20668.5508442174. The cubic root of 427188994 is about 753.1359033539.

The spelling of 427188994 in words is "four hundred twenty-seven million, one hundred eighty-eight thousand, nine hundred ninety-four".