810074736 has 40 divisors (see below), whose sum is σ = 2325215760. Its totient is φ = 270024768.

The previous prime is 810074729. The next prime is 810074767. The reversal of 810074736 is 637470018.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 810074736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937155 + ... + 938018.

It is an arithmetic number, because the mean of its divisors is an integer number (58130394).

Almost surely, 2^810074736 is an apocalyptic number.

It is an amenable number.

810074736 is an abundant number, since it is smaller than the sum of its proper divisors (1515141024).

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

810074736 is a wasteful number, since it uses less digits than its factorization.

810074736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875190 (or 1875178 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 810074736 is about 28461.8118889153. The cubic root of 810074736 is about 932.1984203030.

The spelling of 810074736 in words is "eight hundred ten million, seventy-four thousand, seven hundred thirty-six".