68335402 has 8 divisors (see below), whose sum is σ = 102701412. Its totient is φ = 34101600.

The previous prime is 68335387. The next prime is 68335403. The reversal of 68335402 is 20453386.

It can be written as a sum of positive squares in 2 ways, for example, as 56836521 + 11498881 = 7539^2 + 3391^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68335403) 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, 31749 + ... + 33832.

Almost surely, 2^68335402 is an apocalyptic number.

68335402 is a deficient number, since it is larger than the sum of its proper divisors (34366010).

68335402 is a wasteful number, since it uses less digits than its factorization.

68335402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66104.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 68335402 is about 8266.5229691812. The cubic root of 68335402 is about 408.8354859904.

Adding to 68335402 its reverse (20453386), we get a palindrome (88788788).

The spelling of 68335402 in words is "sixty-eight million, three hundred thirty-five thousand, four hundred two".