44488721 has 2 divisors, whose sum is σ = 44488722. Its totient is φ = 44488720.

The previous prime is 44488673. The next prime is 44488727. The reversal of 44488721 is 12788444.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37650496 + 6838225 = 6136^2 + 2615^2 .

It is a cyclic number.

It is not a de Polignac number, because 44488721 - 2⁶ = 44488657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44488727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22244360 + 22244361.

It is an arithmetic number, because the mean of its divisors is an integer number (22244361).

Almost surely, 2^44488721 is an apocalyptic number.

It is an amenable number.

44488721 is a deficient number, since it is larger than the sum of its proper divisors (1).

44488721 is an equidigital number, since it uses as much as digits as its factorization.

44488721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57344, while the sum is 38.

The square root of 44488721 is about 6669.9865816956. The cubic root of 44488721 is about 354.3371111745.

The spelling of 44488721 in words is "forty-four million, four hundred eighty-eight thousand, seven hundred twenty-one".