1318320382 has 8 divisors (see below), whose sum is σ = 1982413152. Its totient is φ = 657516000.

The previous prime is 1318320379. The next prime is 1318320389. The reversal of 1318320382 is 2830238131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318320389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821094 + ... + 822697.

It is an arithmetic number, because the mean of its divisors is an integer number (247801644).

Almost surely, 2^1318320382 is an apocalyptic number.

1318320382 is a deficient number, since it is larger than the sum of its proper divisors (664092770).

1318320382 is a wasteful number, since it uses less digits than its factorization.

1318320382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644194.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1318320382 is about 36308.6819094277. The cubic root of 1318320382 is about 1096.4958412961.

The spelling of 1318320382 in words is "one billion, three hundred eighteen million, three hundred twenty thousand, three hundred eighty-two".