3191344540 has 12 divisors (see below), whose sum is σ = 6701823576. Its totient is φ = 1276537808.

The previous prime is 3191344537. The next prime is 3191344547. The reversal of 3191344540 is 454431913.

3191344540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3191344496 and 3191344505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3191344547) 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, 79783594 + ... + 79783633.

It is an arithmetic number, because the mean of its divisors is an integer number (558485298).

Almost surely, 2^3191344540 is an apocalyptic number.

It is an amenable number.

3191344540 is an abundant number, since it is smaller than the sum of its proper divisors (3510479036).

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

3191344540 is a wasteful number, since it uses less digits than its factorization.

3191344540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159567236 (or 159567234 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 3191344540 is about 56491.9865113628. The cubic root of 3191344540 is about 1472.2827752814.

The spelling of 3191344540 in words is "three billion, one hundred ninety-one million, three hundred forty-four thousand, five hundred forty".