44081040 has 80 divisors (see below), whose sum is σ = 138937536. Its totient is φ = 11558400.

The previous prime is 44081033. The next prime is 44081053. The reversal of 44081040 is 4018044.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 44080998 and 44081016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13135 + ... + 16145.

Almost surely, 2^44081040 is an apocalyptic number.

44081040 is a gapful number since it is divisible by the number (40) 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 44081040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69468768).

44081040 is an abundant number, since it is smaller than the sum of its proper divisors (94856496).

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

44081040 is a wasteful number, since it uses less digits than its factorization.

44081040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3082 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 44081040 is about 6639.3553903975. The cubic root of 44081040 is about 353.2514425939.

Adding to 44081040 its reverse (4018044), we get a palindrome (48099084).

The spelling of 44081040 in words is "forty-four million, eighty-one thousand, forty".