814436738 has 4 divisors (see below), whose sum is σ = 1221655110. Its totient is φ = 407218368.

The previous prime is 814436719. The next prime is 814436747. The reversal of 814436738 is 837634418.

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., 531625249 + 282811489 = 23057^2 + 16817^2 .

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, 203609183 + ... + 203609186.

Almost surely, 2^814436738 is an apocalyptic number.

814436738 is a deficient number, since it is larger than the sum of its proper divisors (407218372).

814436738 is a wasteful number, since it uses less digits than its factorization.

814436738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407218371.

The product of its digits is 387072, while the sum is 44.

The square root of 814436738 is about 28538.3380385053. The cubic root of 814436738 is about 933.8686261275.

The spelling of 814436738 in words is "eight hundred fourteen million, four hundred thirty-six thousand, seven hundred thirty-eight".