68120452 has 6 divisors (see below), whose sum is σ = 119210798. Its totient is φ = 34060224.

The previous prime is 68120443. The next prime is 68120467. The reversal of 68120452 is 25402186.

It can be written as a sum of positive squares in only one way, i.e., 67502656 + 617796 = 8216^2 + 786^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68120452.

It is an unprimeable number.

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, 8515053 + ... + 8515060.

Almost surely, 2^68120452 is an apocalyptic number.

It is an amenable number.

68120452 is a deficient number, since it is larger than the sum of its proper divisors (51090346).

68120452 is a wasteful number, since it uses less digits than its factorization.

68120452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17030117 (or 17030115 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 68120452 is about 8253.5114951153. The cubic root of 68120452 is about 408.4063697576.

The spelling of 68120452 in words is "sixty-eight million, one hundred twenty thousand, four hundred fifty-two".