4085402842 has 4 divisors (see below), whose sum is σ = 6128104266. Its totient is φ = 2042701420.

The previous prime is 4085402831. The next prime is 4085402851. The reversal of 4085402842 is 2482045804.

4085402842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2327194081 + 1758208761 = 48241^2 + 41931^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021350709 + ... + 1021350712.

Almost surely, 2^4085402842 is an apocalyptic number.

4085402842 is a deficient number, since it is larger than the sum of its proper divisors (2042701424).

4085402842 is a wasteful number, since it uses less digits than its factorization.

4085402842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042701423.

The product of its (nonzero) digits is 81920, while the sum is 37.

The square root of 4085402842 is about 63917.1560850450. The cubic root of 4085402842 is about 1598.6189700344.

The spelling of 4085402842 in words is "four billion, eighty-five million, four hundred two thousand, eight hundred forty-two".