44013021 has 8 divisors (see below), whose sum is σ = 63198240. Its totient is φ = 27084912.

The previous prime is 44013019. The next prime is 44013023. The reversal of 44013021 is 12031044.

It is an interprime number because it is at equal distance from previous prime (44013019) and next prime (44013023).

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

It is not a de Polignac number, because 44013021 - 2¹ = 44013019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44013023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564231 + ... + 564308.

It is an arithmetic number, because the mean of its divisors is an integer number (7899780).

Almost surely, 2^44013021 is an apocalyptic number.

It is an amenable number.

44013021 is a deficient number, since it is larger than the sum of its proper divisors (19185219).

44013021 is a wasteful number, since it uses less digits than its factorization.

44013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128555.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 44013021 is about 6634.2310029121. The cubic root of 44013021 is about 353.0696548446.

Adding to 44013021 its reverse (12031044), we get a palindrome (56044065).

The spelling of 44013021 in words is "forty-four million, thirteen thousand, twenty-one".