417400023 has 4 divisors (see below), whose sum is σ = 556533368. Its totient is φ = 278266680.

The previous prime is 417400019. The next prime is 417400051. The reversal of 417400023 is 320004714.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 417400023 - 2² = 417400019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417400013) 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 in 3 ways as a sum of consecutive naturals, for example, 69566668 + ... + 69566673.

It is an arithmetic number, because the mean of its divisors is an integer number (139133342).

Almost surely, 2^417400023 is an apocalyptic number.

417400023 is a deficient number, since it is larger than the sum of its proper divisors (139133345).

417400023 is a wasteful number, since it uses less digits than its factorization.

417400023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139133344.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 417400023 is about 20430.3701141218. The cubic root of 417400023 is about 747.3387298016.

Adding to 417400023 its reverse (320004714), we get a palindrome (737404737).

The spelling of 417400023 in words is "four hundred seventeen million, four hundred thousand, twenty-three".