44040389 has 8 divisors (see below), whose sum is σ = 44780952. Its totient is φ = 43303680.

The previous prime is 44040383. The next prime is 44040407. The reversal of 44040389 is 98304044.

It can be written as a sum of positive squares in 4 ways, for example, as 2656900 + 41383489 = 1630^2 + 6433^2 .

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 44040389 - 2⁸ = 44040133 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 (44040383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30017 + ... + 31449.

It is an arithmetic number, because the mean of its divisors is an integer number (5597619).

Almost surely, 2^44040389 is an apocalyptic number.

It is an amenable number.

44040389 is a deficient number, since it is larger than the sum of its proper divisors (740563).

44040389 is a wasteful number, since it uses less digits than its factorization.

44040389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 44040389 is about 6636.2933178093. The cubic root of 44040389 is about 353.1428211331.

The spelling of 44040389 in words is "forty-four million, forty thousand, three hundred eighty-nine".