1804197928 has 16 divisors (see below), whose sum is σ = 3643092180. Its totient is φ = 832706688.

The previous prime is 1804197887. The next prime is 1804197973. The reversal of 1804197928 is 8297914081.

It can be written as a sum of positive squares in 2 ways, for example, as 1773925924 + 30272004 = 42118^2 + 5502^2 .

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, 8673925 + ... + 8674132.

Almost surely, 2^1804197928 is an apocalyptic number.

It is an amenable number.

1804197928 is an abundant number, since it is smaller than the sum of its proper divisors (1838894252).

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

1804197928 is a wasteful number, since it uses less digits than its factorization.

1804197928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17348076 (or 17348072 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 1804197928 is about 42475.8511156634. The cubic root of 1804197928 is about 1217.3853184780.

The spelling of 1804197928 in words is "one billion, eight hundred four million, one hundred ninety-seven thousand, nine hundred twenty-eight".