216023732 has 12 divisors (see below), whose sum is σ = 378233856. Its totient is φ = 107956920.

The previous prime is 216023719. The next prime is 216023747. The reversal of 216023732 is 237320612.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4148 + ... + 21195.

It is an arithmetic number, because the mean of its divisors is an integer number (31519488).

Almost surely, 2^216023732 is an apocalyptic number.

It is an amenable number.

216023732 is a deficient number, since it is larger than the sum of its proper divisors (162210124).

216023732 is a wasteful number, since it uses less digits than its factorization.

216023732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27478 (or 27476 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 216023732 is about 14697.7458135593. The cubic root of 216023732 is about 600.0219732694.

The spelling of 216023732 in words is "two hundred sixteen million, twenty-three thousand, seven hundred thirty-two".