4220604 has 18 divisors (see below), whose sum is σ = 10668840. Its totient is φ = 1406856.

The previous prime is 4220599. The next prime is 4220609. The reversal of 4220604 is 4060224.

4220604 is a `hidden beast` number, since 42 + 20 + 604 = 666.

It is an interprime number because it is at equal distance from previous prime (4220599) and next prime (4220609).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58584 + ... + 58655.

Almost surely, 2^4220604 is an apocalyptic number.

It is an amenable number.

4220604 is an abundant number, since it is smaller than the sum of its proper divisors (6448236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4220604 is a wasteful number, since it uses less digits than its factorization.

4220604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117249 (or 117244 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4220604 is about 2054.4108644573. The cubic root of 4220604 is about 161.6062683416.

Adding to 4220604 its reverse (4060224), we get a palindrome (8280828).

The spelling of 4220604 in words is "four million, two hundred twenty thousand, six hundred four".