216412976 has 20 divisors (see below), whose sum is σ = 451554432. Its totient is φ = 99882816.

The previous prime is 216412961. The next prime is 216412979. The reversal of 216412976 is 679214612.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (216412979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520016 + ... + 520431.

Almost surely, 2^216412976 is an apocalyptic number.

216412976 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

216412976 is an abundant number, since it is smaller than the sum of its proper divisors (235141456).

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

216412976 is a wasteful number, since it uses less digits than its factorization.

216412976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040468 (or 1040462 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 216412976 is about 14710.9814764345. The cubic root of 216412976 is about 600.3821417463.

The spelling of 216412976 in words is "two hundred sixteen million, four hundred twelve thousand, nine hundred seventy-six".