1993456082 has 18 divisors (see below), whose sum is σ = 3025738917. Its totient is φ = 985015200.

The previous prime is 1993456081. The next prime is 1993456099. The reversal of 1993456082 is 2806543991.

It can be written as a sum of positive squares in 2 ways, for example, as 1857523801 + 135932281 = 43099^2 + 11659^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31571.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1993456081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8271482 + ... + 8271722.

Almost surely, 2^1993456082 is an apocalyptic number.

1993456082 is a deficient number, since it is larger than the sum of its proper divisors (1032282835).

1993456082 is an frugal number, since it uses more digits than its factorization.

1993456082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 1993456082 is about 44648.1363776810. The cubic root of 1993456082 is about 1258.5454117855.

The spelling of 1993456082 in words is "one billion, nine hundred ninety-three million, four hundred fifty-six thousand, eighty-two".