1993512 has 16 divisors (see below), whose sum is σ = 4983840. Its totient is φ = 664496.

The previous prime is 1993507. The next prime is 1993513. The reversal of 1993512 is 2153991.

It is a self number, because there is not a number n which added to its sum of digits gives 1993512.

It is not an unprimeable number, because it can be changed into a prime (1993513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41508 + ... + 41555.

It is an arithmetic number, because the mean of its divisors is an integer number (311490).

2^1993512 is an apocalyptic number.

1993512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1993512 is an abundant number, since it is smaller than the sum of its proper divisors (2990328).

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

1993512 is a wasteful number, since it uses less digits than its factorization.

1993512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83072 (or 83068 counting only the distinct ones).

The product of its digits is 2430, while the sum is 30.

The square root of 1993512 is about 1411.9178446354. The cubic root of 1993512 is about 125.8557179403.

The spelling of 1993512 in words is "one million, nine hundred ninety-three thousand, five hundred twelve".