216045464 has 32 divisors (see below), whose sum is σ = 417873600. Its totient is φ = 104659200.

The previous prime is 216045457. The next prime is 216045497. The reversal of 216045464 is 464540612.

It is a self number, because there is not a number n which added to its sum of digits gives 216045464.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35132 + ... + 40820.

It is an arithmetic number, because the mean of its divisors is an integer number (13058550).

Almost surely, 2^216045464 is an apocalyptic number.

It is an amenable number.

216045464 is a deficient number, since it is larger than the sum of its proper divisors (201828136).

216045464 is a wasteful number, since it uses less digits than its factorization.

216045464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5843 (or 5839 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 216045464 is about 14698.4850920086. The cubic root of 216045464 is about 600.0420933431.

The spelling of 216045464 in words is "two hundred sixteen million, forty-five thousand, four hundred sixty-four".