8604490240 has 80 divisors (see below), whose sum is σ = 21342194280. Its totient is φ = 3323084800.

The previous prime is 8604490201. The next prime is 8604490247. The reversal of 8604490240 is 420944068.

It can be written as a sum of positive squares in 4 ways, for example, as 4172126464 + 4432363776 = 64592^2 + 66576^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×8604490240³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8604490240.

It is not an unprimeable number, because it can be changed into a prime (8604490247) 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, 16290 + ... + 132190.

Almost surely, 2^8604490240 is an apocalyptic number.

8604490240 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 8604490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10671097140).

8604490240 is an abundant number, since it is smaller than the sum of its proper divisors (12737704040).

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

8604490240 is a wasteful number, since it uses less digits than its factorization.

8604490240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115953 (or 115937 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 8604490240 is about 92760.3915472547. The cubic root of 8604490240 is about 2049.1561261983.

The spelling of 8604490240 in words is "eight billion, six hundred four million, four hundred ninety thousand, two hundred forty".