68072282 has 4 divisors (see below), whose sum is σ = 102108426. Its totient is φ = 34036140.

The previous prime is 68072243. The next prime is 68072287. The reversal of 68072282 is 28227086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38576521 + 29495761 = 6211^2 + 5431^2 .

It is not an unprimeable number, because it can be changed into a prime (68072287) 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 as a sum of consecutive naturals, namely, 17018069 + ... + 17018072.

Almost surely, 2^68072282 is an apocalyptic number.

68072282 is a deficient number, since it is larger than the sum of its proper divisors (34036144).

68072282 is a wasteful number, since it uses less digits than its factorization.

68072282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34036143.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 68072282 is about 8250.5928271852. The cubic root of 68072282 is about 408.3100816229.

The spelling of 68072282 in words is "sixty-eight million, seventy-two thousand, two hundred eighty-two".