44056721 has 8 divisors (see below), whose sum is σ = 45181920. Its totient is φ = 42945408.

The previous prime is 44056711. The next prime is 44056757. The reversal of 44056721 is 12765044.

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 44056721 - 2¹⁸ = 43794577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44056711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3110 + ... + 9888.

It is an arithmetic number, because the mean of its divisors is an integer number (5647740).

Almost surely, 2^44056721 is an apocalyptic number.

It is an amenable number.

44056721 is a deficient number, since it is larger than the sum of its proper divisors (1125199).

44056721 is an equidigital number, since it uses as much as digits as its factorization.

44056721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 44056721 is about 6637.5237099388. The cubic root of 44056721 is about 353.1864690655.

The spelling of 44056721 in words is "forty-four million, fifty-six thousand, seven hundred twenty-one".