42646768 has 20 divisors (see below), whose sum is σ = 84188808. Its totient is φ = 20920640.

The previous prime is 42646763. The next prime is 42646771. The reversal of 42646768 is 86764624.

42646768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42646763) 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 in 3 ways as a sum of consecutive naturals, for example, 24298 + ... + 25993.

Almost surely, 2^42646768 is an apocalyptic number.

It is an amenable number.

42646768 is a deficient number, since it is larger than the sum of its proper divisors (41542040).

42646768 is a wasteful number, since it uses less digits than its factorization.

42646768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50352 (or 50346 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The square root of 42646768 is about 6530.4492954161. The cubic root of 42646768 is about 349.3778553023.

The spelling of 42646768 in words is "forty-two million, six hundred forty-six thousand, seven hundred sixty-eight".