316421078 has 4 divisors (see below), whose sum is σ = 474631620. Its totient is φ = 158210538.

The previous prime is 316421069. The next prime is 316421089. The reversal of 316421078 is 870124613.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79105268 + ... + 79105271.

It is an arithmetic number, because the mean of its divisors is an integer number (118657905).

Almost surely, 2^316421078 is an apocalyptic number.

316421078 is a deficient number, since it is larger than the sum of its proper divisors (158210542).

316421078 is a wasteful number, since it uses less digits than its factorization.

316421078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158210541.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 316421078 is about 17788.2286358142. The cubic root of 316421078 is about 681.4308667933.

It can be divided in two parts, 3164 and 21078, that added together give a palindrome (24242).

The spelling of 316421078 in words is "three hundred sixteen million, four hundred twenty-one thousand, seventy-eight".