8590240 has 48 divisors (see below), whose sum is σ = 20697768. Its totient is φ = 3367936.

The previous prime is 8590217. The next prime is 8590243. The reversal of 8590240 is 420958.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4857616 + 3732624 = 2204^2 + 1932^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8590199 and 8590208.

It is not an unprimeable number, because it can be changed into a prime (8590243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7974 + ... + 8986.

Almost surely, 2^8590240 is an apocalyptic number.

8590240 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 8590240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10348884).

8590240 is an abundant number, since it is smaller than the sum of its proper divisors (12107528).

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

8590240 is a wasteful number, since it uses less digits than its factorization.

8590240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8590240 is about 2930.9111211362. The cubic root of 8590240 is about 204.8024271359.

The spelling of 8590240 in words is "eight million, five hundred ninety thousand, two hundred forty".