1314440391 has 16 divisors (see below), whose sum is σ = 2024379648. Its totient is φ = 749769600.

The previous prime is 1314440381. The next prime is 1314440411. The reversal of 1314440391 is 1930444131.

It is not a de Polignac number, because 1314440391 - 2⁶ = 1314440327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314440381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170955 + ... + 1172076.

It is an arithmetic number, because the mean of its divisors is an integer number (126523728).

Almost surely, 2^1314440391 is an apocalyptic number.

1314440391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1314440391 is a deficient number, since it is larger than the sum of its proper divisors (709939257).

1314440391 is a wasteful number, since it uses less digits than its factorization.

1314440391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343062.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1314440391 is about 36255.2119149785. The cubic root of 1314440391 is about 1095.4190735545.

It can be divided in two parts, 13144 and 40391, that added together give a palindrome (53535).

The spelling of 1314440391 in words is "one billion, three hundred fourteen million, four hundred forty thousand, three hundred ninety-one".