40086269 has 2 divisors, whose sum is σ = 40086270. Its totient is φ = 40086268.

The previous prime is 40086247. The next prime is 40086313. The reversal of 40086269 is 96268004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28783225 + 11303044 = 5365^2 + 3362^2 .

It is a cyclic number.

It is not a de Polignac number, because 40086269 - 2¹² = 40082173 is a prime.

It is a super-2 number, since 2×40086269² = 3213817924680722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40086229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20043134 + 20043135.

It is an arithmetic number, because the mean of its divisors is an integer number (20043135).

Almost surely, 2^40086269 is an apocalyptic number.

It is an amenable number.

40086269 is a deficient number, since it is larger than the sum of its proper divisors (1).

40086269 is an equidigital number, since it uses as much as digits as its factorization.

40086269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 40086269 is about 6331.3718102793. The cubic root of 40086269 is about 342.2408759853.

The spelling of 40086269 in words is "forty million, eighty-six thousand, two hundred sixty-nine".