68142802 has 32 divisors (see below), whose sum is σ = 126628992. Its totient is φ = 26780544.

The previous prime is 68142773. The next prime is 68142803. The reversal of 68142802 is 20824186.

It is a super-2 number, since 2×68142802² = 9286882928822408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68142803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28518 + ... + 30814.

It is an arithmetic number, because the mean of its divisors is an integer number (3957156).

Almost surely, 2^68142802 is an apocalyptic number.

68142802 is a deficient number, since it is larger than the sum of its proper divisors (58486190).

68142802 is a wasteful number, since it uses less digits than its factorization.

68142802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 68142802 is about 8254.8653532326. The cubic root of 68142802 is about 408.4510302768.

Adding to 68142802 its reverse (20824186), we get a palindrome (88966988).

The spelling of 68142802 in words is "sixty-eight million, one hundred forty-two thousand, eight hundred two".