68738242 has 16 divisors (see below), whose sum is σ = 110039040. Its totient is φ = 32090688.

The previous prime is 68738233. The next prime is 68738249. The reversal of 68738242 is 24283786.

It is a junction number, because it is equal to n+sod(n) for n = 68738195 and 68738204.

It is not an unprimeable number, because it can be changed into a prime (68738249) 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 7 ways as a sum of consecutive naturals, for example, 3642 + ... + 12277.

It is an arithmetic number, because the mean of its divisors is an integer number (6877440).

Almost surely, 2^68738242 is an apocalyptic number.

68738242 is a deficient number, since it is larger than the sum of its proper divisors (41300798).

68738242 is a wasteful number, since it uses less digits than its factorization.

68738242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16065.

The product of its digits is 129024, while the sum is 40.

The square root of 68738242 is about 8290.8529114923. The cubic root of 68738242 is about 409.6372798367.

The spelling of 68738242 in words is "sixty-eight million, seven hundred thirty-eight thousand, two hundred forty-two".