8521480 has 64 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 3052800.

The previous prime is 8521453. The next prime is 8521501. The reversal of 8521480 is 841258.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46990 + ... + 47170.

It is an arithmetic number, because the mean of its divisors is an integer number (331695).

Almost surely, 2^8521480 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 8521480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10614240).

8521480 is an abundant number, since it is smaller than the sum of its proper divisors (12707000).

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

8521480 is a wasteful number, since it uses less digits than its factorization.

8521480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 8521480 is about 2919.1574126792. The cubic root of 8521480 is about 204.2545201992.

It can be divided in two parts, 852 and 1480, that added together give a palindrome (2332).

The spelling of 8521480 in words is "eight million, five hundred twenty-one thousand, four hundred eighty".