316640423 has 6 divisors (see below), whose sum is σ = 348042912. Its totient is φ = 287854820.

The previous prime is 316640411. The next prime is 316640431. The reversal of 316640423 is 324046613.

It is not a de Polignac number, because 316640423 - 2⁸ = 316640167 is a prime.

It is a super-2 number, since 2×316640423² = 200522314955237858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316640483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1308311 + ... + 1308552.

It is an arithmetic number, because the mean of its divisors is an integer number (58007152).

Almost surely, 2^316640423 is an apocalyptic number.

316640423 is a deficient number, since it is larger than the sum of its proper divisors (31402489).

316640423 is a wasteful number, since it uses less digits than its factorization.

316640423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616885 (or 2616874 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 316640423 is about 17794.3930213986. The cubic root of 316640423 is about 681.5882877530.

The spelling of 316640423 in words is "three hundred sixteen million, six hundred forty thousand, four hundred twenty-three".