44808721 has 8 divisors (see below), whose sum is σ = 45573120. Its totient is φ = 44049408.

The previous prime is 44808713. The next prime is 44808769. The reversal of 44808721 is 12780844.

44808721 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 44808721 - 2³ = 44808713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44808781) 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, 19200 + ... + 21406.

It is an arithmetic number, because the mean of its divisors is an integer number (5696640).

Almost surely, 2^44808721 is an apocalyptic number.

It is an amenable number.

44808721 is a deficient number, since it is larger than the sum of its proper divisors (764399).

44808721 is a wasteful number, since it uses less digits than its factorization.

44808721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 44808721 is about 6693.9316548647. The cubic root of 44808721 is about 355.1846450673.

The spelling of 44808721 in words is "forty-four million, eight hundred eight thousand, seven hundred twenty-one".