44012521 has 8 divisors (see below), whose sum is σ = 51470144. Its totient is φ = 36847440.

The previous prime is 44012519. The next prime is 44012533. The reversal of 44012521 is 12521044.

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

It is not a de Polignac number, because 44012521 - 2¹ = 44012519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44012561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72810 + ... + 73411.

It is an arithmetic number, because the mean of its divisors is an integer number (6433768).

Almost surely, 2^44012521 is an apocalyptic number.

It is an amenable number.

44012521 is a deficient number, since it is larger than the sum of its proper divisors (7457623).

44012521 is a wasteful number, since it uses less digits than its factorization.

44012521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146271.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 44012521 is about 6634.1933194624. The cubic root of 44012521 is about 353.0683178502.

Adding to 44012521 its reverse (12521044), we get a palindrome (56533565).

The spelling of 44012521 in words is "forty-four million, twelve thousand, five hundred twenty-one".