44038649 has 2 divisors, whose sum is σ = 44038650. Its totient is φ = 44038648.

The previous prime is 44038627. The next prime is 44038661. The reversal of 44038649 is 94683044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43983424 + 55225 = 6632^2 + 235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44038649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44038609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22019324 + 22019325.

It is an arithmetic number, because the mean of its divisors is an integer number (22019325).

Almost surely, 2^44038649 is an apocalyptic number.

It is an amenable number.

44038649 is a deficient number, since it is larger than the sum of its proper divisors (1).

44038649 is an equidigital number, since it uses as much as digits as its factorization.

44038649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 44038649 is about 6636.1622192348. The cubic root of 44038649 is about 353.1381702765.

The spelling of 44038649 in words is "forty-four million, thirty-eight thousand, six hundred forty-nine".