4521536 has 56 divisors (see below), whose sum is σ = 9656064. Its totient is φ = 2096640.

The previous prime is 4521533. The next prime is 4521551. The reversal of 4521536 is 6351254.

It is not an unprimeable number, because it can be changed into a prime (4521533) 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, 85286 + ... + 85338.

Almost surely, 2^4521536 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 4521536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4828032).

4521536 is an abundant number, since it is smaller than the sum of its proper divisors (5134528).

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

4521536 is a wasteful number, since it uses less digits than its factorization.

4521536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 129 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 4521536 is about 2126.3903686765. The cubic root of 4521536 is about 165.3593149133.

The spelling of 4521536 in words is "four million, five hundred twenty-one thousand, five hundred thirty-six".