220604 has 12 divisors (see below), whose sum is σ = 389928. Its totient is φ = 109200.

The previous prime is 220589. The next prime is 220613. The reversal of 220604 is 406022.

It is a super-2 number, since 2×220604² = 97332249632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

220604 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314 + ... + 734.

It is an arithmetic number, because the mean of its divisors is an integer number (32494).

2²²⁰⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

220604 is a deficient number, since it is larger than the sum of its proper divisors (169324).

220604 is a wasteful number, since it uses less digits than its factorization.

220604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220604 is about 469.6850008250. The cubic root of 220604 is about 60.4233028514.

Adding to 220604 its reverse (406022), we get a palindrome (626626).

The spelling of 220604 in words is "two hundred twenty thousand, six hundred four".