220508 has 6 divisors (see below), whose sum is σ = 385896. Its totient is φ = 110252.

The previous prime is 220471. The next prime is 220511. The reversal of 220508 is 805022.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220508.

It is an unprimeable number.

220508 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 27560 + ... + 27567.

It is an arithmetic number, because the mean of its divisors is an integer number (64316).

2²²⁰⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

220508 is a deficient number, since it is larger than the sum of its proper divisors (165388).

220508 is a wasteful number, since it uses less digits than its factorization.

220508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55131 (or 55129 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 220508 is about 469.5827935519. The cubic root of 220508 is about 60.4145367990.

It can be divided in two parts, 22050 and 8, that multiplied together give a square (176400 = 420²).

The spelling of 220508 in words is "two hundred twenty thousand, five hundred eight".