68286642 has 16 divisors (see below), whose sum is σ = 137982432. Its totient is φ = 22527360.

The previous prime is 68286611. The next prime is 68286649. The reversal of 68286642 is 24668286.

It is a junction number, because it is equal to n+sod(n) for n = 68286594 and 68286603.

It is not an unprimeable number, because it can be changed into a prime (68286649) 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, 58084 + ... + 59247.

It is an arithmetic number, because the mean of its divisors is an integer number (8623902).

Almost surely, 2^68286642 is an apocalyptic number.

68286642 is an abundant number, since it is smaller than the sum of its proper divisors (69695790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68286642 is a wasteful number, since it uses less digits than its factorization.

68286642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117433.

The product of its digits is 221184, while the sum is 42.

The square root of 68286642 is about 8263.5731980784. The cubic root of 68286642 is about 408.7382227807.

The spelling of 68286642 in words is "sixty-eight million, two hundred eighty-six thousand, six hundred forty-two".