4055039986 has 4 divisors (see below), whose sum is σ = 6082559982. Its totient is φ = 2027519992.

The previous prime is 4055039977. The next prime is 4055039987. The reversal of 4055039986 is 6899305504.

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., 4054505625 + 534361 = 63675^2 + 731^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4055039987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013759995 + ... + 1013759998.

Almost surely, 2^4055039986 is an apocalyptic number.

4055039986 is a deficient number, since it is larger than the sum of its proper divisors (2027519996).

4055039986 is a wasteful number, since it uses less digits than its factorization.

4055039986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027519995.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 4055039986 is about 63679.1958648977. The cubic root of 4055039986 is about 1594.6487876250.

The spelling of 4055039986 in words is "four billion, fifty-five million, thirty-nine thousand, nine hundred eighty-six".