3140231440 has 80 divisors (see below), whose sum is σ = 7576358832. Its totient is φ = 1209434112.

The previous prime is 3140231431. The next prime is 3140231461. The reversal of 3140231440 is 441320413.

It can be written as a sum of positive squares in 8 ways, for example, as 518381824 + 2621849616 = 22768^2 + 51204^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3140231440² = 19722106993528947200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281652 + ... + 292588.

Almost surely, 2^3140231440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3140231440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3788179416).

3140231440 is an abundant number, since it is smaller than the sum of its proper divisors (4436127392).

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

3140231440 is a wasteful number, since it uses less digits than its factorization.

3140231440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11084 (or 11078 counting only the distinct ones).

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

The square root of 3140231440 is about 56037.7679783911. The cubic root of 3140231440 is about 1464.3803270987.

Adding to 3140231440 its reverse (441320413), we get a palindrome (3581551853).

The spelling of 3140231440 in words is "three billion, one hundred forty million, two hundred thirty-one thousand, four hundred forty".