9008240 has 20 divisors (see below), whose sum is σ = 20944344. Its totient is φ = 3603264.

The previous prime is 9008231. The next prime is 9008243. The reversal of 9008240 is 428009.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×9008240² = 162296775795200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9008243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56222 + ... + 56381.

Almost surely, 2^9008240 is an apocalyptic number.

It is an amenable number.

9008240 is an abundant number, since it is smaller than the sum of its proper divisors (11936104).

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

9008240 is a wasteful number, since it uses less digits than its factorization.

9008240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112616 (or 112610 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 9008240 is about 3001.3730191364. The cubic root of 9008240 is about 208.0718440182.

The spelling of 9008240 in words is "nine million, eight thousand, two hundred forty".