216262868 has 12 divisors (see below), whose sum is σ = 384109152. Its totient is φ = 106517400.

The previous prime is 216262861. The next prime is 216262897. The reversal of 216262868 is 868262612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216262861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403208 + ... + 403743.

It is an arithmetic number, because the mean of its divisors is an integer number (32009096).

Almost surely, 2^216262868 is an apocalyptic number.

It is an amenable number.

216262868 is a deficient number, since it is larger than the sum of its proper divisors (167846284).

216262868 is a wasteful number, since it uses less digits than its factorization.

216262868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807022 (or 807020 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 216262868 is about 14705.8786884701. The cubic root of 216262868 is about 600.2432976267.

The spelling of 216262868 in words is "two hundred sixteen million, two hundred sixty-two thousand, eight hundred sixty-eight".