4224155 has 12 divisors (see below), whose sum is σ = 5490000. Its totient is φ = 3118752.

The previous prime is 4224139. The next prime is 4224161. The reversal of 4224155 is 5514224.

It is a happy number.

It is not a de Polignac number, because 4224155 - 2⁴ = 4224139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4224155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1655 + ... + 3344.

It is an arithmetic number, because the mean of its divisors is an integer number (457500).

Almost surely, 2^4224155 is an apocalyptic number.

4224155 is a deficient number, since it is larger than the sum of its proper divisors (1265845).

4224155 is a wasteful number, since it uses less digits than its factorization.

4224155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5017 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 4224155 is about 2055.2749207831. The cubic root of 4224155 is about 161.6515780488.

Adding to 4224155 its reverse (5514224), we get a palindrome (9738379).

The spelling of 4224155 in words is "four million, two hundred twenty-four thousand, one hundred fifty-five".