42165652 has 12 divisors (see below), whose sum is σ = 76334580. Its totient is φ = 20355776.

The previous prime is 42165649. The next prime is 42165653. The reversal of 42165652 is 25656124.

It can be written as a sum of positive squares in 2 ways, for example, as 31315216 + 10850436 = 5596^2 + 3294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42165653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181633 + ... + 181864.

It is an arithmetic number, because the mean of its divisors is an integer number (6361215).

Almost surely, 2^42165652 is an apocalyptic number.

It is an amenable number.

42165652 is a deficient number, since it is larger than the sum of its proper divisors (34168928).

42165652 is a wasteful number, since it uses less digits than its factorization.

42165652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363530 (or 363528 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 42165652 is about 6493.5084507530. The cubic root of 42165652 is about 348.0590576654.

The spelling of 42165652 in words is "forty-two million, one hundred sixty-five thousand, six hundred fifty-two".