42356768 has 12 divisors (see below), whose sum is σ = 83389950. Its totient is φ = 21178368.

The previous prime is 42356767. The next prime is 42356771. The reversal of 42356768 is 86765324.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42354064 + 2704 = 6508^2 + 52^2 .

It is not an unprimeable number, because it can be changed into a prime (42356767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661793 + ... + 661856.

Almost surely, 2^42356768 is an apocalyptic number.

It is an amenable number.

42356768 is a deficient number, since it is larger than the sum of its proper divisors (41033182).

42356768 is a wasteful number, since it uses less digits than its factorization.

42356768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323659 (or 1323651 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 42356768 is about 6508.2077409991. The cubic root of 42356768 is about 348.5841249007.

The spelling of 42356768 in words is "forty-two million, three hundred fifty-six thousand, seven hundred sixty-eight".