4028567842 has 32 divisors (see below), whose sum is σ = 6691552560. Its totient is φ = 1807453440.

The previous prime is 4028567833. The next prime is 4028567863. The reversal of 4028567842 is 2487658204.

It is a Cunningham number, because it is equal to 63471²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 2904239881 + 1124327961 = 53891^2 + 33531^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4028567792 and 4028567801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136792 + ... + 163612.

Almost surely, 2^4028567842 is an apocalyptic number.

4028567842 is a deficient number, since it is larger than the sum of its proper divisors (2662984718).

4028567842 is a wasteful number, since it uses less digits than its factorization.

4028567842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26998.

The product of its (nonzero) digits is 860160, while the sum is 46.

The square root of 4028567842 is about 63471.0000078776. Note that the first 5 decimals coincide. The cubic root of 4028567842 is about 1591.1711427527.

The spelling of 4028567842 in words is "four billion, twenty-eight million, five hundred sixty-seven thousand, eight hundred forty-two".