810492312 has 32 divisors (see below), whose sum is σ = 2315692800. Its totient is φ = 231569184.

The previous prime is 810492311. The next prime is 810492341. The reversal of 810492312 is 213294018.

It is a super-2 number, since 2×810492312² = 1313795575622210688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 810492312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810492311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412012 + ... + 2412347.

It is an arithmetic number, because the mean of its divisors is an integer number (72365400).

Almost surely, 2^810492312 is an apocalyptic number.

It is an amenable number.

810492312 is an abundant number, since it is smaller than the sum of its proper divisors (1505200488).

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

810492312 is a wasteful number, since it uses less digits than its factorization.

810492312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824375 (or 4824371 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 810492312 is about 28469.1466679281. The cubic root of 810492312 is about 932.3585688275.

The spelling of 810492312 in words is "eight hundred ten million, four hundred ninety-two thousand, three hundred twelve".