219628 has 6 divisors (see below), whose sum is σ = 384356. Its totient is φ = 109812.

The previous prime is 219619. The next prime is 219629. The reversal of 219628 is 826912.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 219596 and 219605.

It is not an unprimeable number, because it can be changed into a prime (219629) 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, 27450 + ... + 27457.

2²¹⁹⁶²⁸ is an apocalyptic number.

It is an amenable number.

219628 is a deficient number, since it is larger than the sum of its proper divisors (164728).

219628 is a wasteful number, since it uses less digits than its factorization.

219628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54911 (or 54909 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 219628 is about 468.6448548741. The cubic root of 219628 is about 60.3340625113.

The spelling of 219628 in words is "two hundred nineteen thousand, six hundred twenty-eight".