216746026 has 8 divisors (see below), whose sum is σ = 371564640. Its totient is φ = 92891148.

The previous prime is 216746003. The next prime is 216746041. The reversal of 216746026 is 620647612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 216745982 and 216746000.

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 3 ways as a sum of consecutive naturals, for example, 7740916 + ... + 7740943.

It is an arithmetic number, because the mean of its divisors is an integer number (46445580).

Almost surely, 2^216746026 is an apocalyptic number.

216746026 is a deficient number, since it is larger than the sum of its proper divisors (154818614).

216746026 is a wasteful number, since it uses less digits than its factorization.

216746026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15481868.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 216746026 is about 14722.2968996010. The cubic root of 216746026 is about 600.6899710772.

The spelling of 216746026 in words is "two hundred sixteen million, seven hundred forty-six thousand, twenty-six".