42330778 has 32 divisors (see below), whose sum is σ = 76930560. Its totient is φ = 17082240.

The previous prime is 42330773. The next prime is 42330793. The reversal of 42330778 is 87703324.

42330778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42330773) by changing a digit.

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, 15375 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (2404080).

Almost surely, 2^42330778 is an apocalyptic number.

42330778 is a deficient number, since it is larger than the sum of its proper divisors (34599782).

42330778 is a wasteful number, since it uses less digits than its factorization.

42330778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 42330778 is about 6506.2107251456. The cubic root of 42330778 is about 348.5128135497.

The spelling of 42330778 in words is "forty-two million, three hundred thirty thousand, seven hundred seventy-eight".