3140404240 has 20 divisors (see below), whose sum is σ = 7301440044. Its totient is φ = 1256161664.

The previous prime is 3140404207. The next prime is 3140404261. The reversal of 3140404240 is 424040413.

It can be written as a sum of positive squares in 2 ways, for example, as 554885136 + 2585519104 = 23556^2 + 50848^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19627447 + ... + 19627606.

Almost surely, 2^3140404240 is an apocalyptic number.

It is an amenable number.

3140404240 is an abundant number, since it is smaller than the sum of its proper divisors (4161035804).

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

3140404240 is a wasteful number, since it uses less digits than its factorization.

3140404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39255066 (or 39255060 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 3140404240 is about 56039.3097744788. The cubic root of 3140404240 is about 1464.4071871443.

Adding to 3140404240 its reverse (424040413), we get a palindrome (3564444653).

The spelling of 3140404240 in words is "three billion, one hundred forty million, four hundred four thousand, two hundred forty".