68253842 has 8 divisors (see below), whose sum is σ = 102419532. Its totient is φ = 34114000.

The previous prime is 68253841. The next prime is 68253853. The reversal of 68253842 is 24835286.

It can be written as a sum of positive squares in 2 ways, for example, as 65626201 + 2627641 = 8101^2 + 1621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 68253796 and 68253805.

It is not an unprimeable number, because it can be changed into a prime (68253841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2792 + ... + 12012.

Almost surely, 2^68253842 is an apocalyptic number.

68253842 is a deficient number, since it is larger than the sum of its proper divisors (34165690).

68253842 is a wasteful number, since it uses less digits than its factorization.

68253842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12924.

The product of its digits is 92160, while the sum is 38.

The square root of 68253842 is about 8261.5883460749. The cubic root of 68253842 is about 408.6727694679.

The spelling of 68253842 in words is "sixty-eight million, two hundred fifty-three thousand, eight hundred forty-two".