1316693994 has 96 divisors (see below), whose sum is σ = 3354379776. Its totient is φ = 341710320.

The previous prime is 1316693981. The next prime is 1316694037. The reversal of 1316693994 is 4993966131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1108669 + ... + 1109855.

It is an arithmetic number, because the mean of its divisors is an integer number (34941456).

Almost surely, 2^1316693994 is an apocalyptic number.

1316693994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316693994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677189888).

1316693994 is an abundant number, since it is smaller than the sum of its proper divisors (2037685782).

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

1316693994 is an equidigital number, since it uses as much as digits as its factorization.

1316693994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1210 counting only the distinct ones).

The product of its digits is 944784, while the sum is 51.

The square root of 1316693994 is about 36286.2783156388. The cubic root of 1316693994 is about 1096.0447467168.

The spelling of 1316693994 in words is "one billion, three hundred sixteen million, six hundred ninety-three thousand, nine hundred ninety-four".