1993817032 has 16 divisors (see below), whose sum is σ = 3740737500. Its totient is φ = 996287040.

The previous prime is 1993817029. The next prime is 1993817047. The reversal of 1993817032 is 2307183991.

It can be written as a sum of positive squares in 2 ways, for example, as 1992193956 + 1623076 = 44634^2 + 1274^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1993817032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63907 + ... + 89842.

Almost surely, 2^1993817032 is an apocalyptic number.

It is an amenable number.

1993817032 is a deficient number, since it is larger than the sum of its proper divisors (1746920468).

1993817032 is a wasteful number, since it uses less digits than its factorization.

1993817032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155376 (or 155372 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 1993817032 is about 44652.1783567163. The cubic root of 1993817032 is about 1258.6213677355.

It can be divided in two parts, 1993 and 817032, that added together give a square (819025 = 905²).

The spelling of 1993817032 in words is "one billion, nine hundred ninety-three million, eight hundred seventeen thousand, thirty-two".