216432896 has 18 divisors (see below), whose sum is σ = 432020862. Its totient is φ = 108216320.

The previous prime is 216432893. The next prime is 216432911. The reversal of 216432896 is 698234612.

It can be written as a sum of positive squares in only one way, i.e., 118026496 + 98406400 = 10864^2 + 9920^2 .

It is not an unprimeable number, because it can be changed into a prime (216432893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422465 + ... + 422976.

It is an arithmetic number, because the mean of its divisors is an integer number (24001159).

Almost surely, 2^216432896 is an apocalyptic number.

It is an amenable number.

216432896 is a deficient number, since it is larger than the sum of its proper divisors (215587966).

216432896 is an frugal number, since it uses more digits than its factorization.

216432896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845457 (or 845443 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 216432896 is about 14711.6585060964. The cubic root of 216432896 is about 600.4005621534.

The spelling of 216432896 in words is "two hundred sixteen million, four hundred thirty-two thousand, eight hundred ninety-six".