4444155 has 24 divisors (see below), whose sum is σ = 7834320. Its totient is φ = 2329920.

The previous prime is 4444147. The next prime is 4444159. The reversal of 4444155 is 5514444.

It is not a de Polignac number, because 4444155 - 2³ = 4444147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4444159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1936 + ... + 3554.

It is an arithmetic number, because the mean of its divisors is an integer number (326430).

Almost surely, 2^4444155 is an apocalyptic number.

4444155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4444155 is a deficient number, since it is larger than the sum of its proper divisors (3390165).

4444155 is a wasteful number, since it uses less digits than its factorization.

4444155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1688 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 4444155 is about 2108.1164578837. The cubic root of 4444155 is about 164.4105690543.

Adding to 4444155 its reverse (5514444), we get a palindrome (9958599).

The spelling of 4444155 in words is "four million, four hundred forty-four thousand, one hundred fifty-five".