4047988 has 36 divisors (see below), whose sum is σ = 8682240. Its totient is φ = 1642032.

The previous prime is 4047983. The next prime is 4047991. The reversal of 4047988 is 8897404.

4047988 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 4047988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3181 + ... + 4267.

Almost surely, 2^4047988 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 4047988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4341120).

4047988 is an abundant number, since it is smaller than the sum of its proper divisors (4634252).

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

4047988 is a wasteful number, since it uses less digits than its factorization.

4047988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 4047988 is about 2011.9612322309. The cubic root of 4047988 is about 159.3723850910.

The spelling of 4047988 in words is "four million, forty-seven thousand, nine hundred eighty-eight".