316340421 has 8 divisors (see below), whose sum is σ = 422937984. Its totient is φ = 210318240.

The previous prime is 316340419. The next prime is 316340447. The reversal of 316340421 is 124043613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 316340421 - 2¹ = 316340419 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 316340391 and 316340400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316340821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142560 + ... + 144761.

It is an arithmetic number, because the mean of its divisors is an integer number (52867248).

Almost surely, 2^316340421 is an apocalyptic number.

It is an amenable number.

316340421 is a deficient number, since it is larger than the sum of its proper divisors (106597563).

316340421 is a wasteful number, since it uses less digits than its factorization.

316340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287691.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 316340421 is about 17785.9613459605. The cubic root of 316340421 is about 681.3729620540.

The spelling of 316340421 in words is "three hundred sixteen million, three hundred forty thousand, four hundred twenty-one".