39244081 has 2 divisors, whose sum is σ = 39244082. Its totient is φ = 39244080.

The previous prime is 39244021. The next prime is 39244091. The reversal of 39244081 is 18044293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27133681 + 12110400 = 5209^2 + 3480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39244081 is a prime.

It is a super-2 number, since 2×39244081² = 3080195787069122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39244001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19622040 + 19622041.

It is an arithmetic number, because the mean of its divisors is an integer number (19622041).

Almost surely, 2^39244081 is an apocalyptic number.

It is an amenable number.

39244081 is a deficient number, since it is larger than the sum of its proper divisors (1).

39244081 is an equidigital number, since it uses as much as digits as its factorization.

39244081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 39244081 is about 6264.5096376333. The cubic root of 39244081 is about 339.8271353095.

It can be divided in two parts, 39 and 244081, that multiplied together give a palindrome (9519159).

The spelling of 39244081 in words is "thirty-nine million, two hundred forty-four thousand, eighty-one".