4003994592 has 264 divisors, whose sum is σ = 12811907304. Its totient is φ = 1224440064.

The previous prime is 4003994549. The next prime is 4003994597. The reversal of 4003994592 is 2954993004.

It is a happy number.

4003994592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003994597) by changing a digit.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 24564303 + ... + 24564465.

Almost surely, 2^4003994592 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 4003994592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6405953652).

4003994592 is an abundant number, since it is smaller than the sum of its proper divisors (8807912712).

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

4003994592 is an equidigital number, since it uses as much as digits as its factorization.

4003994592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 4003994592 is about 63277.1253455781. The cubic root of 4003994592 is about 1587.9292944597.

The spelling of 4003994592 in words is "four billion, three million, nine hundred ninety-four thousand, five hundred ninety-two".