4551216 has 40 divisors (see below), whose sum is σ = 11985840. Its totient is φ = 1487616.

The previous prime is 4551199. The next prime is 4551227. The reversal of 4551216 is 6121554.

It is a super-4 number, since 4×4551216⁴ (a number of 28 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1650 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (299646).

Almost surely, 2^4551216 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 4551216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5992920).

4551216 is an abundant number, since it is smaller than the sum of its proper divisors (7434624).

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

4551216 is a wasteful number, since it uses less digits than its factorization.

4551216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1847 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 4551216 is about 2133.3579165250. The cubic root of 4551216 is about 165.7203400766.

The spelling of 4551216 in words is "four million, five hundred fifty-one thousand, two hundred sixteen".