316420442 has 8 divisors (see below), whose sum is σ = 511140756. Its totient is φ = 146040192.

The previous prime is 316420393. The next prime is 316420457. The reversal of 316420442 is 244024613.

It can be written as a sum of positive squares in 2 ways, for example, as 315382081 + 1038361 = 17759^2 + 1019^2 .

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

It is a super-2 number, since 2×316420442² = 200243792230950728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 12170017 = 316420442 / (3 + 1 + 6 + 4 + 2 + 0 + 4 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6084983 + ... + 6085034.

Almost surely, 2^316420442 is an apocalyptic number.

316420442 is a deficient number, since it is larger than the sum of its proper divisors (194720314).

316420442 is a wasteful number, since it uses less digits than its factorization.

316420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12170032.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 316420442 is about 17788.2107588144. The cubic root of 316420442 is about 681.4304102389.

The spelling of 316420442 in words is "three hundred sixteen million, four hundred twenty thousand, four hundred forty-two".