68442788 has 12 divisors (see below), whose sum is σ = 126078960. Its totient is φ = 32420232.

The previous prime is 68442767. The next prime is 68442791. The reversal of 68442788 is 88724486.

It is a happy number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450206 + ... + 450357.

It is an arithmetic number, because the mean of its divisors is an integer number (10506580).

Almost surely, 2^68442788 is an apocalyptic number.

It is an amenable number.

68442788 is a deficient number, since it is larger than the sum of its proper divisors (57636172).

68442788 is a wasteful number, since it uses less digits than its factorization.

68442788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900586 (or 900584 counting only the distinct ones).

The product of its digits is 688128, while the sum is 47.

The square root of 68442788 is about 8273.0156533153. The cubic root of 68442788 is about 409.0495294143.

The spelling of 68442788 in words is "sixty-eight million, four hundred forty-two thousand, seven hundred eighty-eight".