3140456240 has 80 divisors (see below), whose sum is σ = 7980560640. Its totient is φ = 1144135680.

The previous prime is 3140456237. The next prime is 3140456261. The reversal of 3140456240 is 426540413.

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

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, 4916 + ... + 79404.

It is an arithmetic number, because the mean of its divisors is an integer number (99757008).

Almost surely, 2^3140456240 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 3140456240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3990280320).

3140456240 is an abundant number, since it is smaller than the sum of its proper divisors (4840104400).

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

3140456240 is a wasteful number, since it uses less digits than its factorization.

3140456240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74550 (or 74544 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 3140456240 is about 56039.7737325910. The cubic root of 3140456240 is about 1464.4152698355.

Adding to 3140456240 its reverse (426540413), we get a palindrome (3566996653).

The spelling of 3140456240 in words is "three billion, one hundred forty million, four hundred fifty-six thousand, two hundred forty".