44742745 has 4 divisors (see below), whose sum is σ = 53691300. Its totient is φ = 35794192.

The previous prime is 44742743. The next prime is 44742749. The reversal of 44742745 is 54724744.

44742745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11703241 + 33039504 = 3421^2 + 5748^2 .

It is a cyclic number.

It is not a de Polignac number, because 44742745 - 2¹ = 44742743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44742743) 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 3 ways as a sum of consecutive naturals, for example, 4474270 + ... + 4474279.

It is an arithmetic number, because the mean of its divisors is an integer number (13422825).

Almost surely, 2^44742745 is an apocalyptic number.

It is an amenable number.

44742745 is a deficient number, since it is larger than the sum of its proper divisors (8948555).

44742745 is an equidigital number, since it uses as much as digits as its factorization.

44742745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8948554.

The product of its digits is 125440, while the sum is 37.

The square root of 44742745 is about 6689.0017939899. The cubic root of 44742745 is about 355.0102357691.

The spelling of 44742745 in words is "forty-four million, seven hundred forty-two thousand, seven hundred forty-five".