4517988 has 24 divisors (see below), whose sum is σ = 11162592. Its totient is φ = 1417344.

The previous prime is 4517987. The next prime is 4517993. The reversal of 4517988 is 8897154.

It is a d-powerful number, because it can be written as 4¹¹ + 5² + 1 + 7⁴ + 9⁵ + 8² + 8⁶ .

It is not an unprimeable number, because it can be changed into a prime (4517987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10870 + ... + 11277.

It is an arithmetic number, because the mean of its divisors is an integer number (465108).

Almost surely, 2^4517988 is an apocalyptic number.

It is an amenable number.

4517988 is an abundant number, since it is smaller than the sum of its proper divisors (6644604).

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

4517988 is a wasteful number, since it uses less digits than its factorization.

4517988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22171 (or 22169 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 4517988 is about 2125.5559272811. Note that the first 3 decimals coincide. The cubic root of 4517988 is about 165.3160517114.

The spelling of 4517988 in words is "four million, five hundred seventeen thousand, nine hundred eighty-eight".