216296636 has 12 divisors (see below), whose sum is σ = 384169128. Its totient is φ = 106534032.

The previous prime is 216296609. The next prime is 216296653. The reversal of 216296636 is 636692612.

It is a junction number, because it is equal to n+sod(n) for n = 216296593 and 216296602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403271 + ... + 403806.

It is an arithmetic number, because the mean of its divisors is an integer number (32014094).

Almost surely, 2^216296636 is an apocalyptic number.

It is an amenable number.

216296636 is a deficient number, since it is larger than the sum of its proper divisors (167872492).

216296636 is a wasteful number, since it uses less digits than its factorization.

216296636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807148 (or 807146 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 216296636 is about 14707.0267559422. The cubic root of 216296636 is about 600.2745373259.

The spelling of 216296636 in words is "two hundred sixteen million, two hundred ninety-six thousand, six hundred thirty-six".