40266917 has 2 divisors, whose sum is σ = 40266918. Its totient is φ = 40266916.

The previous prime is 40266913. The next prime is 40266929. The reversal of 40266917 is 71966204.

40266917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34269316 + 5997601 = 5854^2 + 2449^2 .

It is a cyclic number.

It is not a de Polignac number, because 40266917 - 2² = 40266913 is a prime.

It is equal to p_2448863 and since 40266917 and 2448863 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40266913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20133458 + 20133459.

It is an arithmetic number, because the mean of its divisors is an integer number (20133459).

Almost surely, 2^40266917 is an apocalyptic number.

It is an amenable number.

40266917 is a deficient number, since it is larger than the sum of its proper divisors (1).

40266917 is an equidigital number, since it uses as much as digits as its factorization.

40266917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 40266917 is about 6345.6218765382. The cubic root of 40266917 is about 342.7542062924.

The spelling of 40266917 in words is "forty million, two hundred sixty-six thousand, nine hundred seventeen".