3538943994 has 8 divisors (see below), whose sum is σ = 7077888000. Its totient is φ = 1179647996.

The previous prime is 3538943981. The next prime is 3538944053. The reversal of 3538943994 is 4993498353.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

3538943994 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294911994 + ... + 294912005.

It is an arithmetic number, because the mean of its divisors is an integer number (884736000).

Almost surely, 2^3538943994 is an apocalyptic number.

3538943994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3538943994 is a wasteful number, since it uses less digits than its factorization.

3538943994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589824004.

The product of its digits is 12597120, while the sum is 57.

The square root of 3538943994 is about 59489.0241473165. The cubic root of 3538943994 is about 1523.9050090283.

The spelling of 3538943994 in words is "three billion, five hundred thirty-eight million, nine hundred forty-three thousand, nine hundred ninety-four".