68002120 has 16 divisors (see below), whose sum is σ = 153004860. Its totient is φ = 27200832.

The previous prime is 68002117. The next prime is 68002147. The reversal of 68002120 is 2120086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67272804 + 729316 = 8202^2 + 854^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849987 + ... + 850066.

Almost surely, 2^68002120 is an apocalyptic number.

It is an amenable number.

68002120 is an abundant number, since it is smaller than the sum of its proper divisors (85002740).

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

68002120 is a wasteful number, since it uses less digits than its factorization.

68002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700064 (or 1700060 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 68002120 is about 8246.3397941147. The cubic root of 68002120 is about 408.1697518677.

The spelling of 68002120 in words is "sixty-eight million, two thousand, one hundred twenty".