220888 has 8 divisors (see below), whose sum is σ = 414180. Its totient is φ = 110440.
The previous prime is 220879. The next prime is 220889. The reversal of 220888 is 888022.
It is a tau number, because it is divible by the number of its divisors (8).
It is a plaindrome in base 15.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (220889) 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 as a sum of consecutive naturals, namely, 13798 + ... + 13813.
2220888 is an apocalyptic number.
It is an amenable number.
220888 is a deficient number, since it is larger than the sum of its proper divisors (193292).
220888 is a wasteful number, since it uses less digits than its factorization.
220888 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27617 (or 27613 counting only the distinct ones).
The product of its (nonzero) digits is 2048, while the sum is 28.
The square root of 220888 is about 469.9872338692. The cubic root of 220888 is about 60.4492208756.
The spelling of 220888 in words is "two hundred twenty thousand, eight hundred eighty-eight".
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