4420155 has 16 divisors (see below), whose sum is σ = 7098624. Its totient is φ = 2348640.

The previous prime is 4420139. The next prime is 4420159. The reversal of 4420155 is 5510244.

It is not a de Polignac number, because 4420155 - 2⁴ = 4420139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6690 + ... + 7320.

It is an arithmetic number, because the mean of its divisors is an integer number (443664).

Almost surely, 2^4420155 is an apocalyptic number.

4420155 is a deficient number, since it is larger than the sum of its proper divisors (2678469).

4420155 is a wasteful number, since it uses less digits than its factorization.

4420155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 4420155 is about 2102.4164668305. The cubic root of 4420155 is about 164.1140763919.

Adding to 4420155 its reverse (5510244), we get a palindrome (9930399).

The spelling of 4420155 in words is "four million, four hundred twenty thousand, one hundred fifty-five".