68535402 has 16 divisors (see below), whose sum is σ = 147614880. Its totient is φ = 21087792.

The previous prime is 68535373. The next prime is 68535407. The reversal of 68535402 is 20453586.

It is not an unprimeable number, because it can be changed into a prime (68535407) by changing a digit.

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, 439252 + ... + 439407.

It is an arithmetic number, because the mean of its divisors is an integer number (9225930).

Almost surely, 2^68535402 is an apocalyptic number.

68535402 is an abundant number, since it is smaller than the sum of its proper divisors (79079478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68535402 is a wasteful number, since it uses less digits than its factorization.

68535402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878677.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 68535402 is about 8278.6111153985. The cubic root of 68535402 is about 409.2339493242.

Adding to 68535402 its reverse (20453586), we get a palindrome (88988988).

The spelling of 68535402 in words is "sixty-eight million, five hundred thirty-five thousand, four hundred two".