3431040240 has 40 divisors (see below), whose sum is σ = 10636225488. Its totient is φ = 914944000.

The previous prime is 3431040209. The next prime is 3431040247. The reversal of 3431040240 is 420401343.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431040247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7147761 + ... + 7148240.

Almost surely, 2^3431040240 is an apocalyptic number.

3431040240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3431040240 is an abundant number, since it is smaller than the sum of its proper divisors (7205185248).

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

3431040240 is a wasteful number, since it uses less digits than its factorization.

3431040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14296017 (or 14296011 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3431040240 is about 58575.0820742063. The cubic root of 3431040240 is about 1508.2567253774.

Adding to 3431040240 its reverse (420401343), we get a palindrome (3851441583).

The spelling of 3431040240 in words is "three billion, four hundred thirty-one million, forty thousand, two hundred forty".