221468808 has 32 divisors (see below), whose sum is σ = 604006560. Its totient is φ = 67111680.

The previous prime is 221468789. The next prime is 221468827. The reversal of 221468808 is 808864122.

It is an interprime number because it is at equal distance from previous prime (221468789) and next prime (221468827).

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, 419185 + ... + 419712.

It is an arithmetic number, because the mean of its divisors is an integer number (18875205).

Almost surely, 2^221468808 is an apocalyptic number.

It is an amenable number.

221468808 is an abundant number, since it is smaller than the sum of its proper divisors (382537752).

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

221468808 is a wasteful number, since it uses less digits than its factorization.

221468808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838917 (or 838913 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 221468808 is about 14881.8281135081. The cubic root of 221468808 is about 605.0215669747.

The spelling of 221468808 in words is "two hundred twenty-one million, four hundred sixty-eight thousand, eight hundred eight".