819473832 has 24 divisors (see below), whose sum is σ = 2219408490. Its totient is φ = 273157920.

The previous prime is 819473821. The next prime is 819473867. The reversal of 819473832 is 238374918.

It can be written as a sum of positive squares in only one way, i.e., 539447076 + 280026756 = 23226^2 + 16734^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×819473832² = 1343074722665528448, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 5690719 + ... + 5690862.

Almost surely, 2^819473832 is an apocalyptic number.

It is an amenable number.

819473832 is an abundant number, since it is smaller than the sum of its proper divisors (1399934658).

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

819473832 is a wasteful number, since it uses less digits than its factorization.

819473832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11381593 (or 11381586 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 819473832 is about 28626.4533604846. The cubic root of 819473832 is about 935.7899210754.

The spelling of 819473832 in words is "eight hundred nineteen million, four hundred seventy-three thousand, eight hundred thirty-two".