216334468 has 24 divisors (see below), whose sum is σ = 434571200. Its totient is φ = 92307168.

The previous prime is 216334451. The next prime is 216334471. The reversal of 216334468 is 864433612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10458 + ... + 23281.

Almost surely, 2^216334468 is an apocalyptic number.

216334468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

216334468 is an abundant number, since it is smaller than the sum of its proper divisors (218236732).

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

216334468 is a wasteful number, since it uses less digits than its factorization.

216334468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33979 (or 33977 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 216334468 is about 14708.3128876156. The cubic root of 216334468 is about 600.3095328808.

The spelling of 216334468 in words is "two hundred sixteen million, three hundred thirty-four thousand, four hundred sixty-eight".