1933934994 has 64 divisors (see below), whose sum is σ = 4559328000. Its totient is φ = 605539584.

The previous prime is 1933934993. The next prime is 1933935127. The reversal of 1933934994 is 4994393391.

It is a super-2 number, since 2×1933934994² = 7480209122035560072, which contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1933934994.

It is not an unprimeable number, because it can be changed into a prime (1933934993) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 548124 + ... + 551640.

It is an arithmetic number, because the mean of its divisors is an integer number (71239500).

Almost surely, 2^1933934994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1933934994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2279664000).

1933934994 is an abundant number, since it is smaller than the sum of its proper divisors (2625393006).

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

1933934994 is a wasteful number, since it uses less digits than its factorization.

1933934994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144 (or 4138 counting only the distinct ones).

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

The square root of 1933934994 is about 43976.5277619778. The cubic root of 1933934994 is about 1245.8926505803.

The spelling of 1933934994 in words is "one billion, nine hundred thirty-three million, nine hundred thirty-four thousand, nine hundred ninety-four".