314231440 has 20 divisors (see below), whose sum is σ = 730588284. Its totient is φ = 125692544.

The previous prime is 314231431. The next prime is 314231447. The reversal of 314231440 is 44132413.

It can be written as a sum of positive squares in 2 ways, for example, as 175085824 + 139145616 = 13232^2 + 11796^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (314231447) 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 3 ways as a sum of consecutive naturals, for example, 1963867 + ... + 1964026.

Almost surely, 2^314231440 is an apocalyptic number.

It is an amenable number.

314231440 is an abundant number, since it is smaller than the sum of its proper divisors (416356844).

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

314231440 is a wasteful number, since it uses less digits than its factorization.

314231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927906 (or 3927900 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 314231440 is about 17726.5744011639. The cubic root of 314231440 is about 679.8553902412.

Adding to 314231440 its reverse (44132413), we get a palindrome (358363853).

The spelling of 314231440 in words is "three hundred fourteen million, two hundred thirty-one thousand, four hundred forty".