812932160 has 28 divisors (see below), whose sum is σ = 1935795468. Its totient is φ = 325172736.

The previous prime is 812932151. The next prime is 812932181. The reversal of 812932160 is 61239218.

It can be written as a sum of positive squares in 2 ways, for example, as 377291776 + 435640384 = 19424^2 + 20872^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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 in 3 ways as a sum of consecutive naturals, for example, 1269887 + ... + 1270526.

Almost surely, 2^812932160 is an apocalyptic number.

812932160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

812932160 is an abundant number, since it is smaller than the sum of its proper divisors (1122863308).

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

812932160 is a wasteful number, since it uses less digits than its factorization.

812932160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540430 (or 2540420 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 812932160 is about 28511.9652076106. The cubic root of 812932160 is about 933.2932000884.

The spelling of 812932160 in words is "eight hundred twelve million, nine hundred thirty-two thousand, one hundred sixty".