216146726 has 8 divisors (see below), whose sum is σ = 324302160. Its totient is φ = 108046008.

The previous prime is 216146713. The next prime is 216146743. The reversal of 216146726 is 627641612.

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

It is a super-4 number, since 4×216146726⁴ (a number of 34 digits) contains 4444 as substring.

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, 1706 + ... + 20861.

It is an arithmetic number, because the mean of its divisors is an integer number (40537770).

Almost surely, 2^216146726 is an apocalyptic number.

216146726 is a deficient number, since it is larger than the sum of its proper divisors (108155434).

216146726 is a wasteful number, since it uses less digits than its factorization.

216146726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27358.

The product of its digits is 24192, while the sum is 35.

The square root of 216146726 is about 14701.9293291731. The cubic root of 216146726 is about 600.1358266570.

The spelling of 216146726 in words is "two hundred sixteen million, one hundred forty-six thousand, seven hundred twenty-six".