814573818 has 12 divisors (see below), whose sum is σ = 1764909978. Its totient is φ = 271524600.

The previous prime is 814573813. The next prime is 814573831. The reversal of 814573818 is 818375418.

It is a happy number.

814573818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 768564729 + 46009089 = 27723^2 + 6783^2 .

It is not an unprimeable number, because it can be changed into a prime (814573813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22627033 + ... + 22627068.

Almost surely, 2^814573818 is an apocalyptic number.

814573818 is an abundant number, since it is smaller than the sum of its proper divisors (950336160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

814573818 is a wasteful number, since it uses less digits than its factorization.

814573818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45254109 (or 45254106 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 814573818 is about 28540.7396190078. The cubic root of 814573818 is about 933.9210171539.

The spelling of 814573818 in words is "eight hundred fourteen million, five hundred seventy-three thousand, eight hundred eighteen".