44443645 has 8 divisors (see below), whose sum is σ = 53628120. Its totient is φ = 35357760.

The previous prime is 44443643. The next prime is 44443669. The reversal of 44443645 is 54634444.

It can be written as a sum of positive squares in 4 ways, for example, as 1907161 + 42536484 = 1381^2 + 6522^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44443645 - 2¹ = 44443643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44443645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44443643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23650 + ... + 25459.

It is an arithmetic number, because the mean of its divisors is an integer number (6703515).

Almost surely, 2^44443645 is an apocalyptic number.

It is an amenable number.

44443645 is a deficient number, since it is larger than the sum of its proper divisors (9184475).

44443645 is a wasteful number, since it uses less digits than its factorization.

44443645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49295.

The product of its digits is 92160, while the sum is 34.

The square root of 44443645 is about 6666.6067080637. The cubic root of 44443645 is about 354.2173992069.

The spelling of 44443645 in words is "forty-four million, four hundred forty-three thousand, six hundred forty-five".