42065756 has 12 divisors (see below), whose sum is σ = 73673880. Its totient is φ = 21016080.

The previous prime is 42065741. The next prime is 42065767. The reversal of 42065756 is 65756024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690 + ... + 9558.

It is an arithmetic number, because the mean of its divisors is an integer number (6139490).

Almost surely, 2^42065756 is an apocalyptic number.

It is an amenable number.

42065756 is a deficient number, since it is larger than the sum of its proper divisors (31608124).

42065756 is a wasteful number, since it uses less digits than its factorization.

42065756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404 (or 8402 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 42065756 is about 6485.8118998318. The cubic root of 42065756 is about 347.7839743517.

The spelling of 42065756 in words is "forty-two million, sixty-five thousand, seven hundred fifty-six".