40455169 has 2 divisors, whose sum is σ = 40455170. Its totient is φ = 40455168.

The previous prime is 40455143. The next prime is 40455187. The reversal of 40455169 is 96155404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28483569 + 11971600 = 5337^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 40455169 - 2¹³ = 40446977 is a prime.

It is a super-2 number, since 2×40455169² = 3273241397637122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40455119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20227584 + 20227585.

It is an arithmetic number, because the mean of its divisors is an integer number (20227585).

Almost surely, 2^40455169 is an apocalyptic number.

It is an amenable number.

40455169 is a deficient number, since it is larger than the sum of its proper divisors (1).

40455169 is an equidigital number, since it uses as much as digits as its factorization.

40455169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 40455169 is about 6360.4377993971. The cubic root of 40455169 is about 343.2875131823.

The spelling of 40455169 in words is "forty million, four hundred fifty-five thousand, one hundred sixty-nine".