44320332144 has 80 divisors (see below), whose sum is σ = 125036889984. Its totient is φ = 13415980800.

The previous prime is 44320332139. The next prime is 44320332181. The reversal of 44320332144 is 44123302344.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452247 + ... + 541449.

Almost surely, 2^44320332144 is an apocalyptic number.

44320332144 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 44320332144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62518444992).

44320332144 is an abundant number, since it is smaller than the sum of its proper divisors (80716557840).

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

44320332144 is a wasteful number, since it uses less digits than its factorization.

44320332144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90166 (or 90160 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 44320332144 its reverse (44123302344), we get a palindrome (88443634488).

The spelling of 44320332144 in words is "forty-four billion, three hundred twenty million, three hundred thirty-two thousand, one hundred forty-four".