814794842 has 4 divisors (see below), whose sum is σ = 1222192266. Its totient is φ = 407397420.

The previous prime is 814794823. The next prime is 814794863. The reversal of 814794842 is 248497418.

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

It can be written as a sum of positive squares in only one way, i.e., 597851401 + 216943441 = 24451^2 + 14729^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203698709 + ... + 203698712.

Almost surely, 2^814794842 is an apocalyptic number.

814794842 is a deficient number, since it is larger than the sum of its proper divisors (407397424).

814794842 is a wasteful number, since it uses less digits than its factorization.

814794842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407397423.

The product of its digits is 516096, while the sum is 47.

The square root of 814794842 is about 28544.6114354356. The cubic root of 814794842 is about 934.0054786180.

The spelling of 814794842 in words is "eight hundred fourteen million, seven hundred ninety-four thousand, eight hundred forty-two".