40465169 has 2 divisors, whose sum is σ = 40465170. Its totient is φ = 40465168.

The previous prime is 40465163. The next prime is 40465171. The reversal of 40465169 is 96156404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37699600 + 2765569 = 6140^2 + 1663^2 .

It is a cyclic number.

It is not a de Polignac number, because 40465169 - 2¹² = 40461073 is a prime.

It is a super-2 number, since 2×40465169² = 3274859804397122, which contains 22 as substring.

Together with 40465171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40465163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20232584 + 20232585.

It is an arithmetic number, because the mean of its divisors is an integer number (20232585).

Almost surely, 2^40465169 is an apocalyptic number.

It is an amenable number.

40465169 is a deficient number, since it is larger than the sum of its proper divisors (1).

40465169 is an equidigital number, since it uses as much as digits as its factorization.

40465169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40465169 is about 6361.2238602332. The cubic root of 40465169 is about 343.3157962786.

The spelling of 40465169 in words is "forty million, four hundred sixty-five thousand, one hundred sixty-nine".