216379376 has 20 divisors (see below), whose sum is σ = 422016144. Its totient is φ = 107472000.

The previous prime is 216379369. The next prime is 216379393. The reversal of 216379376 is 673973612.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42365 + ... + 47196.

Almost surely, 2^216379376 is an apocalyptic number.

It is an amenable number.

216379376 is a deficient number, since it is larger than the sum of its proper divisors (205636768).

216379376 is a wasteful number, since it uses less digits than its factorization.

216379376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89720 (or 89714 counting only the distinct ones).

The product of its digits is 285768, while the sum is 44.

The square root of 216379376 is about 14709.8394280835. The cubic root of 216379376 is about 600.3510686187.

It can be divided in two parts, 21637 and 9376, that added together give a palindrome (31013).

The spelling of 216379376 in words is "two hundred sixteen million, three hundred seventy-nine thousand, three hundred seventy-six".