812431274 has 32 divisors (see below), whose sum is σ = 1282614912. Its totient is φ = 385560000.

The previous prime is 812431273. The next prime is 812431289. The reversal of 812431274 is 472134218.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 812431274.

It is not an unprimeable number, because it can be changed into a prime (812431273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529889 + ... + 531419.

It is an arithmetic number, because the mean of its divisors is an integer number (40081716).

Almost surely, 2^812431274 is an apocalyptic number.

812431274 is a deficient number, since it is larger than the sum of its proper divisors (470183638).

812431274 is a wasteful number, since it uses less digits than its factorization.

812431274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its digits is 10752, while the sum is 32.

The square root of 812431274 is about 28503.1800681959. The cubic root of 812431274 is about 933.1014786613.

The spelling of 812431274 in words is "eight hundred twelve million, four hundred thirty-one thousand, two hundred seventy-four".