68279142 has 16 divisors (see below), whose sum is σ = 136928880. Its totient is φ = 22697952.

The previous prime is 68279093. The next prime is 68279149. The reversal of 68279142 is 24197286.

It is a self number, because there is not a number n which added to its sum of digits gives 68279142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68279149) 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 7 ways as a sum of consecutive naturals, for example, 13017 + ... + 17492.

It is an arithmetic number, because the mean of its divisors is an integer number (8558055).

Almost surely, 2^68279142 is an apocalyptic number.

68279142 is an abundant number, since it is smaller than the sum of its proper divisors (68649738).

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

68279142 is a wasteful number, since it uses less digits than its factorization.

68279142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30887.

The product of its digits is 48384, while the sum is 39.

The square root of 68279142 is about 8263.1193867691. The cubic root of 68279142 is about 408.7232581706.

The spelling of 68279142 in words is "sixty-eight million, two hundred seventy-nine thousand, one hundred forty-two".