68445858 has 32 divisors (see below), whose sum is σ = 152510400. Its totient is φ = 20333376.

The previous prime is 68445857. The next prime is 68445899. The reversal of 68445858 is 85854486.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68445857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12868 + ... + 17391.

It is an arithmetic number, because the mean of its divisors is an integer number (4765950).

Almost surely, 2^68445858 is an apocalyptic number.

68445858 is an abundant number, since it is smaller than the sum of its proper divisors (84064542).

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

68445858 is a wasteful number, since it uses less digits than its factorization.

68445858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30306.

The product of its digits is 1228800, while the sum is 48.

The square root of 68445858 is about 8273.2011942174. The cubic root of 68445858 is about 409.0556452925.

The spelling of 68445858 in words is "sixty-eight million, four hundred forty-five thousand, eight hundred fifty-eight".