3894840792 has 72 divisors (see below), whose sum is σ = 11027207100. Its totient is φ = 1241821152.

The previous prime is 3894840757. The next prime is 3894840841. The reversal of 3894840792 is 2970484983.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13042 + ... + 89217.

Almost surely, 2^3894840792 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 3894840792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5513603550).

3894840792 is an abundant number, since it is smaller than the sum of its proper divisors (7132366308).

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

3894840792 is a wasteful number, since it uses less digits than its factorization.

3894840792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102317 (or 102287 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 3894840792 is about 62408.6595914381. The cubic root of 3894840792 is about 1573.3665156668.

The spelling of 3894840792 in words is "three billion, eight hundred ninety-four million, eight hundred forty thousand, seven hundred ninety-two".