4056441538 has 4 divisors (see below), whose sum is σ = 6084662310. Its totient is φ = 2028220768.

The previous prime is 4056441511. The next prime is 4056441539. The reversal of 4056441538 is 8351446504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3609245929 + 447195609 = 60077^2 + 21147^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4056441538.

It is not an unprimeable number, because it can be changed into a prime (4056441539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014110383 + ... + 1014110386.

Almost surely, 2^4056441538 is an apocalyptic number.

4056441538 is a deficient number, since it is larger than the sum of its proper divisors (2028220772).

4056441538 is a wasteful number, since it uses less digits than its factorization.

4056441538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028220771.

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 4056441538 is about 63690.1997013669. The cubic root of 4056441538 is about 1594.8324870674.

The spelling of 4056441538 in words is "four billion, fifty-six million, four hundred forty-one thousand, five hundred thirty-eight".