4521416 has 8 divisors (see below), whose sum is σ = 8477670. Its totient is φ = 2260704.

The previous prime is 4521403. The next prime is 4521421. The reversal of 4521416 is 6141254.

It can be written as a sum of positive squares in only one way, i.e., 4218916 + 302500 = 2054^2 + 550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4521391 and 4521400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282581 + ... + 282596.

Almost surely, 2^4521416 is an apocalyptic number.

It is an amenable number.

4521416 is a deficient number, since it is larger than the sum of its proper divisors (3956254).

4521416 is a wasteful number, since it uses less digits than its factorization.

4521416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565183 (or 565179 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 4521416 is about 2126.3621516571. The cubic root of 4521416 is about 165.3578520407.

The spelling of 4521416 in words is "four million, five hundred twenty-one thousand, four hundred sixteen".