3143343440 has 20 divisors (see below), whose sum is σ = 7308273684. Its totient is φ = 1257337344.

The previous prime is 3143343439. The next prime is 3143343443. The reversal of 3143343440 is 443433413.

It can be written as a sum of positive squares in 2 ways, for example, as 2489211664 + 654131776 = 49892^2 + 25576^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143343443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19645817 + ... + 19645976.

Almost surely, 2^3143343440 is an apocalyptic number.

It is an amenable number.

3143343440 is an abundant number, since it is smaller than the sum of its proper divisors (4164930244).

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

3143343440 is a wasteful number, since it uses less digits than its factorization.

3143343440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39291806 (or 39291800 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

The square root of 3143343440 is about 56065.5280899057. The cubic root of 3143343440 is about 1464.8639057881.

Adding to 3143343440 its reverse (443433413), we get a palindrome (3586776853).

The spelling of 3143343440 in words is "three billion, one hundred forty-three million, three hundred forty-three thousand, four hundred forty".