40022069 has 2 divisors, whose sum is σ = 40022070. Its totient is φ = 40022068.

The previous prime is 40022053. The next prime is 40022071. The reversal of 40022069 is 96022004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39853969 + 168100 = 6313^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 40022069 - 2⁴ = 40022053 is a prime.

It is a super-2 number, since 2×40022069² = 3203532014081522, which contains 22 as substring.

Together with 40022071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40022869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011034 + 20011035.

It is an arithmetic number, because the mean of its divisors is an integer number (20011035).

Almost surely, 2^40022069 is an apocalyptic number.

It is an amenable number.

40022069 is a deficient number, since it is larger than the sum of its proper divisors (1).

40022069 is an equidigital number, since it uses as much as digits as its factorization.

40022069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40022069 is about 6326.2997873955. The cubic root of 40022069 is about 342.0580735371.

The spelling of 40022069 in words is "forty million, twenty-two thousand, sixty-nine".