8890440988 has 24 divisors (see below), whose sum is σ = 18278250480. Its totient is φ = 3730254720.

The previous prime is 8890440959. The next prime is 8890441003.

8890440988 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8890440988² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7770793 + ... + 7771936.

It is an arithmetic number, because the mean of its divisors is an integer number (761593770).

Almost surely, 2^8890440988 is an apocalyptic number.

It is an amenable number.

8890440988 is an abundant number, since it is smaller than the sum of its proper divisors (9387809492).

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

8890440988 is a wasteful number, since it uses less digits than its factorization.

8890440988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15542757 (or 15542755 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 58.

The square root of 8890440988 is about 94289.1350474698. The cubic root of 8890440988 is about 2071.6088986060.

The spelling of 8890440988 in words is "eight billion, eight hundred ninety million, four hundred forty thousand, nine hundred eighty-eight".