68445626 has 12 divisors (see below), whose sum is σ = 106333422. Its totient is φ = 33041904.

The previous prime is 68445617. The next prime is 68445649. The reversal of 68445626 is 62654486.

It can be written as a sum of positive squares in 3 ways, for example, as 56987401 + 11458225 = 7549^2 + 3385^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18665 + ... + 22028.

Almost surely, 2^68445626 is an apocalyptic number.

68445626 is a deficient number, since it is larger than the sum of its proper divisors (37887796).

68445626 is a wasteful number, since it uses less digits than its factorization.

68445626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40753 (or 40724 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 68445626 is about 8273.1871730307. The cubic root of 68445626 is about 409.0551831218.

The spelling of 68445626 in words is "sixty-eight million, four hundred forty-five thousand, six hundred twenty-six".