42679636 has 6 divisors (see below), whose sum is σ = 74689370. Its totient is φ = 21339816.

The previous prime is 42679631. The next prime is 42679657. The reversal of 42679636 is 63697624.

42679636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 33131536 + 9548100 = 5756^2 + 3090^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42679592 and 42679601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42679631) 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 as a sum of consecutive naturals, namely, 5334951 + ... + 5334958.

Almost surely, 2^42679636 is an apocalyptic number.

It is an amenable number.

42679636 is a deficient number, since it is larger than the sum of its proper divisors (32009734).

42679636 is a wasteful number, since it uses less digits than its factorization.

42679636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10669913 (or 10669911 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The square root of 42679636 is about 6532.9653297718. The cubic root of 42679636 is about 349.4675877960.

The spelling of 42679636 in words is "forty-two million, six hundred seventy-nine thousand, six hundred thirty-six".