319440691 has 8 divisors (see below), whose sum is σ = 328209840. Its totient is φ = 310783488.

The previous prime is 319440683. The next prime is 319440701. The reversal of 319440691 is 196044913.

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 319440691 - 2³ = 319440683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 319440691.

It is not an unprimeable number, because it can be changed into a prime (319440631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22186 + ... + 33631.

It is an arithmetic number, because the mean of its divisors is an integer number (41026230).

Almost surely, 2^319440691 is an apocalyptic number.

319440691 is a deficient number, since it is larger than the sum of its proper divisors (8769149).

319440691 is an equidigital number, since it uses as much as digits as its factorization.

319440691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55973.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 319440691 is about 17872.9038211478. The cubic root of 319440691 is about 683.5916442153.

The spelling of 319440691 in words is "three hundred nineteen million, four hundred forty thousand, six hundred ninety-one".