444141144 has 80 divisors (see below), whose sum is σ = 1265200200. Its totient is φ = 145525248.

The previous prime is 444141143. The next prime is 444141161. The reversal of 444141144 is 441141444.

It is a super-2 number, since 2×444141144² = 394522711587257472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444141143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32424 + ... + 44040.

Almost surely, 2^444141144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444141144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632600100).

444141144 is an abundant number, since it is smaller than the sum of its proper divisors (821059056).

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

444141144 is a wasteful number, since it uses less digits than its factorization.

444141144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694 (or 11681 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 444141144 is about 21074.6564384808. The cubic root of 444141144 is about 762.9691926958.

Adding to 444141144 its reverse (441141444), we get a palindrome (885282588).

The spelling of 444141144 in words is "four hundred forty-four million, one hundred forty-one thousand, one hundred forty-four".