4065541242 has 64 divisors (see below), whose sum is σ = 9355115520. Its totient is φ = 1153810944.

The previous prime is 4065541229. The next prime is 4065541247. The reversal of 4065541242 is 2421455604.

It is not an unprimeable number, because it can be changed into a prime (4065541247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6567609 + ... + 6568227.

It is an arithmetic number, because the mean of its divisors is an integer number (146173680).

Almost surely, 2^4065541242 is an apocalyptic number.

4065541242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4065541242 is an abundant number, since it is smaller than the sum of its proper divisors (5289574278).

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

4065541242 is a wasteful number, since it uses less digits than its factorization.

4065541242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 4065541242 is about 63761.5969216581. The cubic root of 4065541242 is about 1596.0241444265.

Adding to 4065541242 its reverse (2421455604), we get a palindrome (6486996846).

The spelling of 4065541242 in words is "four billion, sixty-five million, five hundred forty-one thousand, two hundred forty-two".