8919240 has 128 divisors (see below), whose sum is σ = 30326400. Its totient is φ = 2078720.

The previous prime is 8919223. The next prime is 8919259. The reversal of 8919240 is 429198.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38164 + ... + 38396.

It is an arithmetic number, because the mean of its divisors is an integer number (236925).

Almost surely, 2^8919240 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 8919240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15163200).

8919240 is an abundant number, since it is smaller than the sum of its proper divisors (21407160).

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

8919240 is a wasteful number, since it uses less digits than its factorization.

8919240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 8919240 is about 2986.5096684926. The cubic root of 8919240 is about 207.3843357903.

The spelling of 8919240 in words is "eight million, nine hundred nineteen thousand, two hundred forty".