812962080 has 144 divisors (see below), whose sum is σ = 3170591424. Its totient is φ = 185817600.

The previous prime is 812962057. The next prime is 812962081. The reversal of 812962080 is 80269218.

812962080 is a `hidden beast` number, since 8 + 1 + 29 + 620 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (812962081) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 30246 + ... + 50405.

It is an arithmetic number, because the mean of its divisors is an integer number (22017996).

Almost surely, 2^812962080 is an apocalyptic number.

812962080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

812962080 is an abundant number, since it is smaller than the sum of its proper divisors (2357629344).

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

812962080 is a wasteful number, since it uses less digits than its factorization.

812962080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80679 (or 80668 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 812962080 is about 28512.4898947812. The cubic root of 812962080 is about 933.3046499122.

The spelling of 812962080 in words is "eight hundred twelve million, nine hundred sixty-two thousand, eighty".