4512816 has 180 divisors, whose sum is σ = 16294096. Its totient is φ = 1140480.

The previous prime is 4512811. The next prime is 4512839. The reversal of 4512816 is 6182154.

Its product of digits (1920) is a multiple of the sum of its prime divisors (60).

It is a self number, because there is not a number n which added to its sum of digits gives 4512816.

It is not an unprimeable number, because it can be changed into a prime (4512811) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 121950 + ... + 121986.

Almost surely, 2^4512816 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 4512816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8147048).

4512816 is an abundant number, since it is smaller than the sum of its proper divisors (11781280).

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

4512816 is a wasteful number, since it uses less digits than its factorization.

4512816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 60 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 4512816 is about 2124.3389560049. The cubic root of 4512816 is about 165.2529453694.

The spelling of 4512816 in words is "four million, five hundred twelve thousand, eight hundred sixteen".