42705764 has 24 divisors (see below), whose sum is σ = 77292600. Its totient is φ = 20632320.

The previous prime is 42705763. The next prime is 42705781. The reversal of 42705764 is 46750724.

It can be written as a sum of positive squares in 4 ways, for example, as 195364 + 42510400 = 442^2 + 6520^2 .

It is not an unprimeable number, because it can be changed into a prime (42705763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16682 + ... + 19070.

It is an arithmetic number, because the mean of its divisors is an integer number (3220525).

Almost surely, 2^42705764 is an apocalyptic number.

It is an amenable number.

42705764 is a deficient number, since it is larger than the sum of its proper divisors (34586836).

42705764 is a wasteful number, since it uses less digits than its factorization.

42705764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 42705764 is about 6534.9647282904. The cubic root of 42705764 is about 349.5388866428.

The spelling of 42705764 in words is "forty-two million, seven hundred five thousand, seven hundred sixty-four".