8890440 has 128 divisors (see below), whose sum is σ = 29635200. Its totient is φ = 2119680.

The previous prime is 8890429. The next prime is 8890447. The reversal of 8890440 is 440988.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (8890447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63891 + ... + 64029.

It is an arithmetic number, because the mean of its divisors is an integer number (231525).

Almost surely, 2^8890440 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 8890440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14817600).

8890440 is an abundant number, since it is smaller than the sum of its proper divisors (20744760).

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

8890440 is a wasteful number, since it uses less digits than its factorization.

8890440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 8890440 is about 2981.6840878940. The cubic root of 8890440 is about 207.1608821866.

The spelling of 8890440 in words is "eight million, eight hundred ninety thousand, four hundred forty".