216023726 has 16 divisors (see below), whose sum is σ = 354929040. Its totient is φ = 98152320.

The previous prime is 216023719. The next prime is 216023747. The reversal of 216023726 is 627320612.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108560 + ... + 110531.

It is an arithmetic number, because the mean of its divisors is an integer number (22183065).

Almost surely, 2^216023726 is an apocalyptic number.

216023726 is a deficient number, since it is larger than the sum of its proper divisors (138905314).

216023726 is a wasteful number, since it uses less digits than its factorization.

216023726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219139.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 216023726 is about 14697.7456094464. The cubic root of 216023726 is about 600.0219677142.

The spelling of 216023726 in words is "two hundred sixteen million, twenty-three thousand, seven hundred twenty-six".