1993544 has 32 divisors (see below), whose sum is σ = 4327680. Its totient is φ = 843264.

The previous prime is 1993531. The next prime is 1993553. The reversal of 1993544 is 4453991.

1993544 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1993544³ = 23768333431590999552, which contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5249 + ... + 5615.

It is an arithmetic number, because the mean of its divisors is an integer number (135240).

2^1993544 is an apocalyptic number.

1993544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1993544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2163840).

1993544 is an abundant number, since it is smaller than the sum of its proper divisors (2334136).

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

1993544 is a wasteful number, since it uses less digits than its factorization.

1993544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 473 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 1993544 is about 1411.9291766941. The cubic root of 1993544 is about 125.8563913517.

The spelling of 1993544 in words is "one million, nine hundred ninety-three thousand, five hundred forty-four".