818012972 has 12 divisors (see below), whose sum is σ = 1636026000. Its totient is φ = 350576976.

The previous prime is 818012933. The next prime is 818012999. The reversal of 818012972 is 279210818.

818012972 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14607347 + ... + 14607402.

It is an arithmetic number, because the mean of its divisors is an integer number (136335500).

Almost surely, 2^818012972 is an apocalyptic number.

It is an amenable number.

818012972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

818012972 is a wasteful number, since it uses less digits than its factorization.

818012972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29214760 (or 29214758 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 818012972 is about 28600.9260689230. The cubic root of 818012972 is about 935.2335188415.

The spelling of 818012972 in words is "eight hundred eighteen million, twelve thousand, nine hundred seventy-two".