4068131340 has 192 divisors, whose sum is σ = 14077679616. Its totient is φ = 854765568.

The previous prime is 4068131323. The next prime is 4068131357. The reversal of 4068131340 is 431318604.

It is an interprime number because it is at equal distance from previous prime (4068131323) and next prime (4068131357).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4068131298 and 4068131307.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1434564 + ... + 1437396.

It is an arithmetic number, because the mean of its divisors is an integer number (73321248).

Almost surely, 2^4068131340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4068131340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7038839808).

4068131340 is an abundant number, since it is smaller than the sum of its proper divisors (10009548276).

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

4068131340 is a wasteful number, since it uses less digits than its factorization.

4068131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128 (or 3126 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 4068131340 is about 63781.9044870879. The cubic root of 4068131340 is about 1596.3630071703.

Adding to 4068131340 its reverse (431318604), we get a palindrome (4499449944).

The spelling of 4068131340 in words is "four billion, sixty-eight million, one hundred thirty-one thousand, three hundred forty".