216094594 has 4 divisors (see below), whose sum is σ = 324141894. Its totient is φ = 108047296.

The previous prime is 216094577. The next prime is 216094607. The reversal of 216094594 is 495490612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 209525625 + 6568969 = 14475^2 + 2563^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 54023647 + ... + 54023650.

Almost surely, 2^216094594 is an apocalyptic number.

216094594 is a deficient number, since it is larger than the sum of its proper divisors (108047300).

216094594 is a wasteful number, since it uses less digits than its factorization.

216094594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108047299.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 216094594 is about 14700.1562576729. The cubic root of 216094594 is about 600.0875742543.

The spelling of 216094594 in words is "two hundred sixteen million, ninety-four thousand, five hundred ninety-four".