42955469 has 2 divisors, whose sum is σ = 42955470. Its totient is φ = 42955468.

The previous prime is 42955459. The next prime is 42955489. The reversal of 42955469 is 96455924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37982569 + 4972900 = 6163^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 42955469 - 2⁴ = 42955453 is a prime.

It is a super-2 number, since 2×42955469² = 3690344634019922, 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 (42955459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21477734 + 21477735.

It is an arithmetic number, because the mean of its divisors is an integer number (21477735).

Almost surely, 2^42955469 is an apocalyptic number.

It is an amenable number.

42955469 is a deficient number, since it is larger than the sum of its proper divisors (1).

42955469 is an equidigital number, since it uses as much as digits as its factorization.

42955469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The square root of 42955469 is about 6554.0421878410. The cubic root of 42955469 is about 350.2188264225.

The spelling of 42955469 in words is "forty-two million, nine hundred fifty-five thousand, four hundred sixty-nine".