3431521140 has 48 divisors (see below), whose sum is σ = 9611203392. Its totient is φ = 914791936.

The previous prime is 3431521127. The next prime is 3431521141. The reversal of 3431521140 is 411251343.

It is a happy number.

3431521140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3431521140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431521141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253627 + ... + 266813.

It is an arithmetic number, because the mean of its divisors is an integer number (200233404).

Almost surely, 2^3431521140 is an apocalyptic number.

3431521140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3431521140 is an abundant number, since it is smaller than the sum of its proper divisors (6179682252).

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

3431521140 is a wasteful number, since it uses less digits than its factorization.

3431521140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17536 (or 17534 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 3431521140 is about 58579.1869182221. The cubic root of 3431521140 is about 1508.3271886309.

Adding to 3431521140 its reverse (411251343), we get a palindrome (3842772483).

It can be divided in two parts, 34315 and 21140, that added together give a palindrome (55455).

The spelling of 3431521140 in words is "three billion, four hundred thirty-one million, five hundred twenty-one thousand, one hundred forty".