8988642 has 48 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 2732256.

The previous prime is 8988619. The next prime is 8988643. The reversal of 8988642 is 2468898.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8988643) 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 23 ways as a sum of consecutive naturals, for example, 24859 + ... + 25217.

It is an arithmetic number, because the mean of its divisors is an integer number (442260).

Almost surely, 2^8988642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8988642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10614240).

8988642 is an abundant number, since it is smaller than the sum of its proper divisors (12239838).

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

8988642 is a wasteful number, since it uses less digits than its factorization.

8988642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 484 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 8988642 is about 2998.1064023813. The cubic root of 8988642 is about 207.9208432773.

The spelling of 8988642 in words is "eight million, nine hundred eighty-eight thousand, six hundred forty-two".