39422081 has 2 divisors, whose sum is σ = 39422082. Its totient is φ = 39422080.

The previous prime is 39422059. The next prime is 39422101. The reversal of 39422081 is 18022493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38440000 + 982081 = 6200^2 + 991^2 .

It is a cyclic number.

It is not a de Polignac number, because 39422081 - 2¹⁸ = 39159937 is a prime.

It is a super-2 number, since 2×39422081² = 3108200940741122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (39422021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19711040 + 19711041.

It is an arithmetic number, because the mean of its divisors is an integer number (19711041).

Almost surely, 2^39422081 is an apocalyptic number.

It is an amenable number.

39422081 is a deficient number, since it is larger than the sum of its proper divisors (1).

39422081 is an equidigital number, since it uses as much as digits as its factorization.

39422081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 39422081 is about 6278.7005821268. The cubic root of 39422081 is about 340.3401469052.

The spelling of 39422081 in words is "thirty-nine million, four hundred twenty-two thousand, eighty-one".