42680786 has 8 divisors (see below), whose sum is σ = 64178940. Its totient is φ = 21287808.

The previous prime is 42680773. The next prime is 42680789. The reversal of 42680786 is 68708624.

It can be written as a sum of positive squares in 2 ways, for example, as 41925625 + 755161 = 6475^2 + 869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42680789) 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, 25271 + ... + 26906.

Almost surely, 2^42680786 is an apocalyptic number.

42680786 is a deficient number, since it is larger than the sum of its proper divisors (21498154).

42680786 is a wasteful number, since it uses less digits than its factorization.

42680786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52588.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 42680786 is about 6533.0533443406. The cubic root of 42680786 is about 349.4707265616.

The spelling of 42680786 in words is "forty-two million, six hundred eighty thousand, seven hundred eighty-six".