216495468 has 36 divisors (see below), whose sum is σ = 625432080. Its totient is φ = 61855776.

The previous prime is 216495449. The next prime is 216495491. The reversal of 216495468 is 864594612.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 429303 + ... + 429806.

Almost surely, 2^216495468 is an apocalyptic number.

216495468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

216495468 is an abundant number, since it is smaller than the sum of its proper divisors (408936612).

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

216495468 is a wasteful number, since it uses less digits than its factorization.

216495468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859126 (or 859121 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 216495468 is about 14713.7849651271. The cubic root of 216495468 is about 600.4584163349.

The spelling of 216495468 in words is "two hundred sixteen million, four hundred ninety-five thousand, four hundred sixty-eight".