1316440693 has 8 divisors (see below), whose sum is σ = 1325411360. Its totient is φ = 1307489040.

The previous prime is 1316440691. The next prime is 1316440709. The reversal of 1316440693 is 3960446131.

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

It is a cyclic number.

It is not a de Polignac number, because 1316440693 - 2¹ = 1316440691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316440691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151246 + ... + 159712.

It is an arithmetic number, because the mean of its divisors is an integer number (165676420).

Almost surely, 2^1316440693 is an apocalyptic number.

It is an amenable number.

1316440693 is a deficient number, since it is larger than the sum of its proper divisors (8970667).

1316440693 is an equidigital number, since it uses as much as digits as its factorization.

1316440693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9507.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1316440693 is about 36282.7878339027. The cubic root of 1316440693 is about 1095.9744577869.

The spelling of 1316440693 in words is "one billion, three hundred sixteen million, four hundred forty thousand, six hundred ninety-three".