216075408 has 40 divisors (see below), whose sum is σ = 561639648. Its totient is φ = 71580672.

The previous prime is 216075407. The next prime is 216075427. The reversal of 216075408 is 804570612.

It is not an unprimeable number, because it can be changed into a prime (216075407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5985 + ... + 21632.

Almost surely, 2^216075408 is an apocalyptic number.

It is an amenable number.

216075408 is an abundant number, since it is smaller than the sum of its proper divisors (345564240).

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

216075408 is a wasteful number, since it uses less digits than its factorization.

216075408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27791 (or 27785 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 216075408 is about 14699.5036650902. The cubic root of 216075408 is about 600.0698140986.

The spelling of 216075408 in words is "two hundred sixteen million, seventy-five thousand, four hundred eight".