68956450 has 12 divisors (see below), whose sum is σ = 128259090. Its totient is φ = 27582560.

The previous prime is 68956439. The next prime is 68956451. The reversal of 68956450 is 5465986.

It can be written as a sum of positive squares in 3 ways, for example, as 64112049 + 4844401 = 8007^2 + 2201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68956397 and 68956406.

It is not an unprimeable number, because it can be changed into a prime (68956451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689515 + ... + 689614.

Almost surely, 2^68956450 is an apocalyptic number.

68956450 is a deficient number, since it is larger than the sum of its proper divisors (59302640).

68956450 is a wasteful number, since it uses less digits than its factorization.

68956450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379141 (or 1379136 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 68956450 is about 8304.0020472059. The cubic root of 68956450 is about 410.0702834102.

The spelling of 68956450 in words is "sixty-eight million, nine hundred fifty-six thousand, four hundred fifty".