216382486 has 4 divisors (see below), whose sum is σ = 324573732. Its totient is φ = 108191242.

The previous prime is 216382483. The next prime is 216382487. The reversal of 216382486 is 684283612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216382483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54095620 + ... + 54095623.

It is an arithmetic number, because the mean of its divisors is an integer number (81143433).

Almost surely, 2^216382486 is an apocalyptic number.

216382486 is a deficient number, since it is larger than the sum of its proper divisors (108191246).

216382486 is a wasteful number, since it uses less digits than its factorization.

216382486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108191245.

The product of its digits is 110592, while the sum is 40.

The square root of 216382486 is about 14709.9451392587. The cubic root of 216382486 is about 600.3539448677.

The spelling of 216382486 in words is "two hundred sixteen million, three hundred eighty-two thousand, four hundred eighty-six".