42178036 has 12 divisors (see below), whose sum is σ = 75204612. Its totient is φ = 20691008.

The previous prime is 42178007. The next prime is 42178063. The reversal of 42178036 is 63087124.

42178036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35928036 + 6250000 = 5994^2 + 2500^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42177989 and 42178007.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 99265 + ... + 99688.

It is an arithmetic number, because the mean of its divisors is an integer number (6267051).

Almost surely, 2^42178036 is an apocalyptic number.

It is an amenable number.

42178036 is a deficient number, since it is larger than the sum of its proper divisors (33026576).

42178036 is a wasteful number, since it uses less digits than its factorization.

42178036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199010 (or 199008 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 42178036 is about 6494.4619484604. The cubic root of 42178036 is about 348.0931291687.

The spelling of 42178036 in words is "forty-two million, one hundred seventy-eight thousand, thirty-six".