44081331 has 16 divisors (see below), whose sum is σ = 68544000. Its totient is φ = 25188744.

The previous prime is 44081329. The next prime is 44081341. The reversal of 44081331 is 13318044.

It is not a de Polignac number, because 44081331 - 2¹ = 44081329 is a prime.

It is a super-2 number, since 2×44081331² = 3886327485463122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44081341) 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, 20391 + ... + 22448.

It is an arithmetic number, because the mean of its divisors is an integer number (4284000).

Almost surely, 2^44081331 is an apocalyptic number.

44081331 is a deficient number, since it is larger than the sum of its proper divisors (24462669).

44081331 is an equidigital number, since it uses as much as digits as its factorization.

44081331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42863 (or 42849 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 44081331 is about 6639.3773051394. The cubic root of 44081331 is about 353.2522199193.

Adding to 44081331 its sum of digits (24), we get a triangular number (44081355 = T₉₃₈₉).

Adding to 44081331 its reverse (13318044), we get a palindrome (57399375).

The spelling of 44081331 in words is "forty-four million, eighty-one thousand, three hundred thirty-one".