221476896 has 96 divisors (see below), whose sum is σ = 666892800. Its totient is φ = 71435520.

The previous prime is 221476889. The next prime is 221476919. The reversal of 221476896 is 698674122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22650 + ... + 30918.

It is an arithmetic number, because the mean of its divisors is an integer number (6946800).

Almost surely, 2^221476896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221476896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333446400).

221476896 is an abundant number, since it is smaller than the sum of its proper divisors (445415904).

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

221476896 is a wasteful number, since it uses less digits than its factorization.

221476896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8319 (or 8305 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 221476896 is about 14882.0998518354. The cubic root of 221476896 is about 605.0289319771.

The spelling of 221476896 in words is "two hundred twenty-one million, four hundred seventy-six thousand, eight hundred ninety-six".