8904240 has 120 divisors (see below), whose sum is σ = 30466800. Its totient is φ = 2330112.

The previous prime is 8904239. The next prime is 8904253. The reversal of 8904240 is 424098.

8904240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59686 + ... + 59834.

It is an arithmetic number, because the mean of its divisors is an integer number (253890).

Almost surely, 2^8904240 is an apocalyptic number.

8904240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8904240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15233400).

8904240 is an abundant number, since it is smaller than the sum of its proper divisors (21562560).

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

8904240 is a wasteful number, since it uses less digits than its factorization.

8904240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8904240 is about 2983.9973190336. The cubic root of 8904240 is about 207.2680138272.

The spelling of 8904240 in words is "eight million, nine hundred four thousand, two hundred forty".