221446414 has 16 divisors (see below), whose sum is σ = 379922400. Its totient is φ = 94830624.

The previous prime is 221446391. The next prime is 221446417. The reversal of 221446414 is 414644122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221446417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14472 + ... + 25540.

It is an arithmetic number, because the mean of its divisors is an integer number (23745150).

Almost surely, 2^221446414 is an apocalyptic number.

221446414 is a deficient number, since it is larger than the sum of its proper divisors (158475986).

221446414 is a wasteful number, since it uses less digits than its factorization.

221446414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12507.

The product of its digits is 6144, while the sum is 28.

The square root of 221446414 is about 14881.0757003652. The cubic root of 221446414 is about 605.0011738702.

The spelling of 221446414 in words is "two hundred twenty-one million, four hundred forty-six thousand, four hundred fourteen".