316642730 has 16 divisors (see below), whose sum is σ = 570533544. Its totient is φ = 126528960.

The previous prime is 316642717. The next prime is 316642783. The reversal of 316642730 is 37246613.

It can be written as a sum of positive squares in 4 ways, for example, as 155276521 + 161366209 = 12461^2 + 12703^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5297 + ... + 25716.

Almost surely, 2^316642730 is an apocalyptic number.

316642730 is a deficient number, since it is larger than the sum of its proper divisors (253890814).

316642730 is a wasteful number, since it uses less digits than its factorization.

316642730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32041.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 316642730 is about 17794.4578450708. The cubic root of 316642730 is about 681.5899430695.

The spelling of 316642730 in words is "three hundred sixteen million, six hundred forty-two thousand, seven hundred thirty".