3994275028 has 12 divisors (see below), whose sum is σ = 6991474420. Its totient is φ = 1996710912.

The previous prime is 3994275017. The next prime is 3994275029. The reversal of 3994275028 is 8205724993.

It can be written as a sum of positive squares in 2 ways, for example, as 1029254724 + 2965020304 = 32082^2 + 54452^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994275029) 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 3 ways as a sum of consecutive naturals, for example, 85101 + ... + 123412.

Almost surely, 2^3994275028 is an apocalyptic number.

It is an amenable number.

3994275028 is a deficient number, since it is larger than the sum of its proper divisors (2997199392).

3994275028 is a wasteful number, since it uses less digits than its factorization.

3994275028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213306 (or 213304 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 3994275028 is about 63200.2771196456. The cubic root of 3994275028 is about 1586.6433714969.

The spelling of 3994275028 in words is "three billion, nine hundred ninety-four million, two hundred seventy-five thousand, twenty-eight".