1993224 has 32 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 651456.

The previous prime is 1993219. The next prime is 1993231. The reversal of 1993224 is 4223991.

It is a junction number, because it is equal to n+sod(n) for n = 1993191 and 1993200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489 + ... + 2055.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

2^1993224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1993224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160).

1993224 is an abundant number, since it is smaller than the sum of its proper divisors (3087096).

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

1993224 is a wasteful number, since it uses less digits than its factorization.

1993224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1625 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 1993224 is about 1411.8158520147. The cubic root of 1993224 is about 125.8496569129.

The spelling of 1993224 in words is "one million, nine hundred ninety-three thousand, two hundred twenty-four".