216832944 has 20 divisors (see below), whose sum is σ = 560151896. Its totient is φ = 72277632.

The previous prime is 216832939. The next prime is 216832951. The reversal of 216832944 is 449238612.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 2258629 + ... + 2258724.

Almost surely, 2^216832944 is an apocalyptic number.

216832944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216832944 is an abundant number, since it is smaller than the sum of its proper divisors (343318952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216832944 is a wasteful number, since it uses less digits than its factorization.

216832944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517364 (or 4517358 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 216832944 is about 14725.2485208230. The cubic root of 216832944 is about 600.7702551995.

The spelling of 216832944 in words is "two hundred sixteen million, eight hundred thirty-two thousand, nine hundred forty-four".