4050021313 has 8 divisors (see below), whose sum is σ = 4366524456. Its totient is φ = 3734227200.

The previous prime is 4050021301. The next prime is 4050021317. The reversal of 4050021313 is 3131200504.

It can be written as a sum of positive squares in 4 ways, for example, as 82029249 + 3967992064 = 9057^2 + 62992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4050021313 - 2⁵ = 4050021281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4050021317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165358 + ... + 188263.

It is an arithmetic number, because the mean of its divisors is an integer number (545815557).

Almost surely, 2^4050021313 is an apocalyptic number.

It is an amenable number.

4050021313 is a deficient number, since it is larger than the sum of its proper divisors (316503143).

4050021313 is a wasteful number, since it uses less digits than its factorization.

4050021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354515.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 4050021313 is about 63639.7777573115. Note that the first 4 decimals coincide. The cubic root of 4050021313 is about 1593.9906498730.

Adding to 4050021313 its reverse (3131200504), we get a palindrome (7181221817).

The spelling of 4050021313 in words is "four billion, fifty million, twenty-one thousand, three hundred thirteen".