68908450 has 24 divisors (see below), whose sum is σ = 138030228. Its totient is φ = 25442880.

The previous prime is 68908447. The next prime is 68908451. The reversal of 68908450 is 5480986.

It can be written as a sum of positive squares in 6 ways, for example, as 9941409 + 58967041 = 3153^2 + 7679^2 .

It is not an unprimeable number, because it can be changed into a prime (68908451) 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 11 ways as a sum of consecutive naturals, for example, 52357 + ... + 53656.

Almost surely, 2^68908450 is an apocalyptic number.

68908450 is an abundant number, since it is smaller than the sum of its proper divisors (69121778).

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

68908450 is a wasteful number, since it uses less digits than its factorization.

68908450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106038 (or 106033 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 68908450 is about 8301.1113713767. Note that the first 3 decimals coincide. The cubic root of 68908450 is about 409.9751125088.

The spelling of 68908450 in words is "sixty-eight million, nine hundred eight thousand, four hundred fifty".