4002988 has 12 divisors (see below), whose sum is σ = 7642152. Its totient is φ = 1819520.

The previous prime is 4002983. The next prime is 4002991. The reversal of 4002988 is 8892004.

4002988 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4002983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45445 + ... + 45532.

It is an arithmetic number, because the mean of its divisors is an integer number (636846).

Almost surely, 2^4002988 is an apocalyptic number.

It is an amenable number.

4002988 is a deficient number, since it is larger than the sum of its proper divisors (3639164).

4002988 is a wasteful number, since it uses less digits than its factorization.

4002988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90992 (or 90990 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 4002988 is about 2000.7468605498. The cubic root of 4002988 is about 158.7796216451.

The spelling of 4002988 in words is "four million, two thousand, nine hundred eighty-eight".