44380381 has 2 divisors, whose sum is σ = 44380382. Its totient is φ = 44380380.

The previous prime is 44380373. The next prime is 44380433. The reversal of 44380381 is 18308344.

44380381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36905625 + 7474756 = 6075^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 44380381 - 2³ = 44380373 is a prime.

It is a super-2 number, since 2×44380381² = 3939236435410322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44380321) 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 as a sum of consecutive naturals, namely, 22190190 + 22190191.

It is an arithmetic number, because the mean of its divisors is an integer number (22190191).

Almost surely, 2^44380381 is an apocalyptic number.

It is an amenable number.

44380381 is a deficient number, since it is larger than the sum of its proper divisors (1).

44380381 is an equidigital number, since it uses as much as digits as its factorization.

44380381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 44380381 is about 6661.8601756566. The cubic root of 44380381 is about 354.0492473007.

The spelling of 44380381 in words is "forty-four million, three hundred eighty thousand, three hundred eighty-one".