42065524 has 12 divisors (see below), whose sum is σ = 75326944. Its totient is φ = 20543544.

The previous prime is 42065521. The next prime is 42065533. The reversal of 42065524 is 42556024.

42065524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42065492 and 42065501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42065521) 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, 122112 + ... + 122455.

Almost surely, 2^42065524 is an apocalyptic number.

It is an amenable number.

42065524 is a deficient number, since it is larger than the sum of its proper divisors (33261420).

42065524 is a wasteful number, since it uses less digits than its factorization.

42065524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244614 (or 244612 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 42065524 is about 6485.7940146138. The cubic root of 42065524 is about 347.7833349873.

It can be divided in two parts, 4206 and 5524, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 42065524 in words is "forty-two million, sixty-five thousand, five hundred twenty-four".