315642382 has 16 divisors (see below), whose sum is σ = 516944304. Its totient is φ = 143352000.

The previous prime is 315642361. The next prime is 315642391. The reversal of 315642382 is 283246513.

It is a super-2 number, since 2×315642382² = 199260226629267848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23632 + ... + 34492.

It is an arithmetic number, because the mean of its divisors is an integer number (32309019).

Almost surely, 2^315642382 is an apocalyptic number.

315642382 is a deficient number, since it is larger than the sum of its proper divisors (201301922).

315642382 is a wasteful number, since it uses less digits than its factorization.

315642382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12195.

The product of its digits is 34560, while the sum is 34.

The square root of 315642382 is about 17766.3271950057. The cubic root of 315642382 is about 680.8714188450.

Adding to 315642382 its reverse (283246513), we get a palindrome (598888895).

The spelling of 315642382 in words is "three hundred fifteen million, six hundred forty-two thousand, three hundred eighty-two".