44155144 has 32 divisors (see below), whose sum is σ = 91677600. Its totient is φ = 19768320.

The previous prime is 44155141. The next prime is 44155159.

44155144 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (44155141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2152 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (2864925).

Almost surely, 2^44155144 is an apocalyptic number.

44155144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44155144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45838800).

44155144 is an abundant number, since it is smaller than the sum of its proper divisors (47522456).

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

44155144 is a wasteful number, since it uses less digits than its factorization.

44155144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573 (or 7569 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 44155144 is about 6644.9337092254. The cubic root of 44155144 is about 353.4492804081.

It can be divided in two parts, 4415 and 5144, that added together give a palindrome (9559).

The spelling of 44155144 in words is "forty-four million, one hundred fifty-five thousand, one hundred forty-four".