68253838 has 16 divisors (see below), whose sum is σ = 104884560. Its totient is φ = 33302016.

The previous prime is 68253797. The next prime is 68253841. The reversal of 68253838 is 83835286.

It is a junction number, because it is equal to n+sod(n) for n = 68253794 and 68253803.

It is a congruent number.

It is an unprimeable number.

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, 12270 + ... + 16942.

It is an arithmetic number, because the mean of its divisors is an integer number (6555285).

Almost surely, 2^68253838 is an apocalyptic number.

68253838 is a deficient number, since it is larger than the sum of its proper divisors (36630722).

68253838 is a wasteful number, since it uses less digits than its factorization.

68253838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851.

The product of its digits is 276480, while the sum is 43.

The square root of 68253838 is about 8261.5881039907. The cubic root of 68253838 is about 408.6727614845.

The spelling of 68253838 in words is "sixty-eight million, two hundred fifty-three thousand, eight hundred thirty-eight".