44140521 has 8 divisors (see below), whose sum is σ = 59084064. Its totient is φ = 29312000.

The previous prime is 44140511. The next prime is 44140549. The reversal of 44140521 is 12504144.

It is a happy number.

44140521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44140521 - 2⁹ = 44140009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44140511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27855 + ... + 29396.

It is an arithmetic number, because the mean of its divisors is an integer number (7385508).

Almost surely, 2^44140521 is an apocalyptic number.

It is an amenable number.

44140521 is a deficient number, since it is larger than the sum of its proper divisors (14943543).

44140521 is a wasteful number, since it uses less digits than its factorization.

44140521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57511.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 44140521 is about 6643.8333061569. The cubic root of 44140521 is about 353.4102584579.

Adding to 44140521 its reverse (12504144), we get a palindrome (56644665).

The spelling of 44140521 in words is "forty-four million, one hundred forty thousand, five hundred twenty-one".