402317423 has 4 divisors (see below), whose sum is σ = 402623760. Its totient is φ = 402011088.

The previous prime is 402317413. The next prime is 402317431. The reversal of 402317423 is 324713204.

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

It is a cyclic number.

It is not a de Polignac number, because 402317423 - 2¹⁰ = 402316399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402317392 and 402317401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402317413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151190 + ... + 153827.

It is an arithmetic number, because the mean of its divisors is an integer number (100655940).

Almost surely, 2^402317423 is an apocalyptic number.

402317423 is a deficient number, since it is larger than the sum of its proper divisors (306337).

402317423 is a wasteful number, since it uses less digits than its factorization.

402317423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306336.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 402317423 is about 20057.8519039303. The cubic root of 402317423 is about 738.2264705231.

The spelling of 402317423 in words is "four hundred two million, three hundred seventeen thousand, four hundred twenty-three".