68442842 has 32 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 29776320.

The previous prime is 68442839. The next prime is 68442853. The reversal of 68442842 is 24824486.

It is a junction number, because it is equal to n+sod(n) for n = 68442796 and 68442805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31367 + ... + 33477.

It is an arithmetic number, because the mean of its divisors is an integer number (3659040).

Almost surely, 2^68442842 is an apocalyptic number.

68442842 is a deficient number, since it is larger than the sum of its proper divisors (48646438).

68442842 is a wasteful number, since it uses less digits than its factorization.

68442842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198.

The product of its digits is 98304, while the sum is 38.

The square root of 68442842 is about 8273.0189169372. The cubic root of 68442842 is about 409.0496369916.

The spelling of 68442842 in words is "sixty-eight million, four hundred forty-two thousand, eight hundred forty-two".