819923372 has 12 divisors (see below), whose sum is σ = 1435286496. Its totient is φ = 409841520.

The previous prime is 819923369. The next prime is 819923431. The reversal of 819923372 is 273329918.

It is a happy number.

819923372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13703 + ... + 42750.

It is an arithmetic number, because the mean of its divisors is an integer number (119607208).

Almost surely, 2^819923372 is an apocalyptic number.

It is an amenable number.

819923372 is a deficient number, since it is larger than the sum of its proper divisors (615363124).

819923372 is a wasteful number, since it uses less digits than its factorization.

819923372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60088 (or 60086 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 819923372 is about 28634.3041123754. The cubic root of 819923372 is about 935.9610056928.

The spelling of 819923372 in words is "eight hundred nineteen million, nine hundred twenty-three thousand, three hundred seventy-two".