2036993994 has 100 divisors (see below), whose sum is σ = 5325804594. Its totient is φ = 581887152.

The previous prime is 2036993977. The next prime is 2036993999. The reversal of 2036993994 is 4993996302.

It can be written as a sum of positive squares in only one way, i.e., 1405125225 + 631868769 = 37485^2 + 25137^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2036993994.

It is not an unprimeable number, because it can be changed into a prime (2036993999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 386344 + ... + 391580.

Almost surely, 2^2036993994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2036993994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2662902297).

2036993994 is an abundant number, since it is smaller than the sum of its proper divisors (3288810600).

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

2036993994 is an frugal number, since it uses more digits than its factorization.

2036993994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279 (or 5249 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 54.

The square root of 2036993994 is about 45133.0698490586. The cubic root of 2036993994 is about 1267.6418916114.

The spelling of 2036993994 in words is "two billion, thirty-six million, nine hundred ninety-three thousand, nine hundred ninety-four".