44528749 has 4 divisors (see below), whose sum is σ = 44634940. Its totient is φ = 44422560.

The previous prime is 44528689. The next prime is 44528773. The reversal of 44528749 is 94782544.

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 22155849 + 22372900 = 4707^2 + 4730^2 .

It is a cyclic number.

It is not a de Polignac number, because 44528749 - 2¹¹ = 44526701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44528149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52464 + ... + 53305.

It is an arithmetic number, because the mean of its divisors is an integer number (11158735).

Almost surely, 2^44528749 is an apocalyptic number.

It is an amenable number.

44528749 is a deficient number, since it is larger than the sum of its proper divisors (106191).

44528749 is a wasteful number, since it uses less digits than its factorization.

44528749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106190.

The product of its digits is 322560, while the sum is 43.

The square root of 44528749 is about 6672.9865127992. The cubic root of 44528749 is about 354.4433489948.

The spelling of 44528749 in words is "forty-four million, five hundred twenty-eight thousand, seven hundred forty-nine".