216453441 has 16 divisors (see below), whose sum is σ = 298558400. Its totient is φ = 139382208.

The previous prime is 216453409. The next prime is 216453449. The reversal of 216453441 is 144354612.

It is not a de Polignac number, because 216453441 - 2⁵ = 216453409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216453399 and 216453408.

It is not an unprimeable number, because it can be changed into a prime (216453449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8415 + ... + 22443.

It is an arithmetic number, because the mean of its divisors is an integer number (18659900).

Almost surely, 2^216453441 is an apocalyptic number.

It is an amenable number.

216453441 is a deficient number, since it is larger than the sum of its proper divisors (82104959).

216453441 is a wasteful number, since it uses less digits than its factorization.

216453441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14208.

The product of its digits is 11520, while the sum is 30.

The square root of 216453441 is about 14712.3567452669. The cubic root of 216453441 is about 600.4195593260.

The spelling of 216453441 in words is "two hundred sixteen million, four hundred fifty-three thousand, four hundred forty-one".