44540521 has 8 divisors (see below), whose sum is σ = 46148864. Its totient is φ = 42942960.

The previous prime is 44540519. The next prime is 44540543. The reversal of 44540521 is 12504544.

It is a happy number.

44540521 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 44540521 - 2¹ = 44540519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44540021) 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, 6235 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (5768608).

Almost surely, 2^44540521 is an apocalyptic number.

It is an amenable number.

44540521 is a deficient number, since it is larger than the sum of its proper divisors (1608343).

44540521 is a wasteful number, since it uses less digits than its factorization.

44540521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 44540521 is about 6673.8685183333. The cubic root of 44540521 is about 354.4745807987.

The spelling of 44540521 in words is "forty-four million, five hundred forty thousand, five hundred twenty-one".