1681960732 has 6 divisors (see below), whose sum is σ = 2943431288. Its totient is φ = 840980364.

The previous prime is 1681960717. The next prime is 1681960733. The reversal of 1681960732 is 2370691861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681960733) by changing a digit.

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 as a sum of consecutive naturals, namely, 210245088 + ... + 210245095.

Almost surely, 2^1681960732 is an apocalyptic number.

It is an amenable number.

1681960732 is a deficient number, since it is larger than the sum of its proper divisors (1261470556).

1681960732 is a wasteful number, since it uses less digits than its factorization.

1681960732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420490187 (or 420490185 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1681960732 is about 41011.7145703517. The cubic root of 1681960732 is about 1189.2466884471.

The spelling of 1681960732 in words is "one billion, six hundred eighty-one million, nine hundred sixty thousand, seven hundred thirty-two".