42065776 has 20 divisors (see below), whose sum is σ = 84313800. Its totient is φ = 20307392.

The previous prime is 42065773. The next prime is 42065801. The reversal of 42065776 is 67756024.

42065776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42065773) 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 3 ways as a sum of consecutive naturals, for example, 44866 + ... + 45793.

It is an arithmetic number, because the mean of its divisors is an integer number (4215690).

Almost surely, 2^42065776 is an apocalyptic number.

It is an amenable number.

42065776 is an abundant number, since it is smaller than the sum of its proper divisors (42248024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42065776 is a wasteful number, since it uses less digits than its factorization.

42065776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90696 (or 90690 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 42065776 is about 6485.8134416586. The cubic root of 42065776 is about 347.7840294692.

The spelling of 42065776 in words is "forty-two million, sixty-five thousand, seven hundred seventy-six".