3140531240 has 128 divisors (see below), whose sum is σ = 8922009600. Its totient is φ = 966401280.

The previous prime is 3140531231. The next prime is 3140531263. The reversal of 3140531240 is 421350413.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236867 + ... + 249773.

It is an arithmetic number, because the mean of its divisors is an integer number (69703200).

Almost surely, 2^3140531240 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 3140531240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4461004800).

3140531240 is an abundant number, since it is smaller than the sum of its proper divisors (5781478360).

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

3140531240 is a wasteful number, since it uses less digits than its factorization.

3140531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13015 (or 13011 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3140531240 is about 56040.4428961799. The cubic root of 3140531240 is about 1464.4269274061.

Adding to 3140531240 its reverse (421350413), we get a palindrome (3561881653).

The spelling of 3140531240 in words is "three billion, one hundred forty million, five hundred thirty-one thousand, two hundred forty".