1316508378 has 8 divisors (see below), whose sum is σ = 2633016768. Its totient is φ = 438836124.

The previous prime is 1316508371. The next prime is 1316508379. The reversal of 1316508378 is 8738056131.

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

1316508378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1316508371) 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, 109709026 + ... + 109709037.

It is an arithmetic number, because the mean of its divisors is an integer number (329127096).

Almost surely, 2^1316508378 is an apocalyptic number.

1316508378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316508378 is a wasteful number, since it uses less digits than its factorization.

1316508378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219418068.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1316508378 is about 36283.7205644625. The cubic root of 1316508378 is about 1095.9932406966.

The spelling of 1316508378 in words is "one billion, three hundred sixteen million, five hundred eight thousand, three hundred seventy-eight".