1993607244 has 72 divisors (see below), whose sum is σ = 5167945328. Its totient is φ = 647792640.

The previous prime is 1993607173. The next prime is 1993607251. The reversal of 1993607244 is 4427063991.

It is a happy number.

1993607244 is a `hidden beast` number, since 19 + 9 + 3 + 607 + 24 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1993607244.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 229704 + ... + 238224.

Almost surely, 2^1993607244 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 1993607244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2583972664).

1993607244 is an abundant number, since it is smaller than the sum of its proper divisors (3174338084).

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

1993607244 is a wasteful number, since it uses less digits than its factorization.

1993607244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695 (or 8690 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 1993607244 is about 44649.8291598075. The cubic root of 1993607244 is about 1258.5772224409.

The spelling of 1993607244 in words is "one billion, nine hundred ninety-three million, six hundred seven thousand, two hundred forty-four".