44000381 has 2 divisors, whose sum is σ = 44000382. Its totient is φ = 44000380.

The previous prime is 44000351. The next prime is 44000399. The reversal of 44000381 is 18300044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27394756 + 16605625 = 5234^2 + 4075^2 .

It is a cyclic number.

It is not a de Polignac number, because 44000381 - 2⁶ = 44000317 is a prime.

It is a super-2 number, since 2×44000381² = 3872067056290322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44000321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22000190 + 22000191.

It is an arithmetic number, because the mean of its divisors is an integer number (22000191).

Almost surely, 2^44000381 is an apocalyptic number.

It is an amenable number.

44000381 is a deficient number, since it is larger than the sum of its proper divisors (1).

44000381 is an equidigital number, since it uses as much as digits as its factorization.

44000381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 44000381 is about 6633.2782996042. The cubic root of 44000381 is about 353.0358525166.

The spelling of 44000381 in words is "forty-four million, three hundred eighty-one", and thus it is an aban number.