68455308 has 12 divisors (see below), whose sum is σ = 159729080. Its totient is φ = 22818432.

The previous prime is 68455301. The next prime is 68455313. The reversal of 68455308 is 80355486.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×68455308² = 9372258386749728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68455301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2852293 + ... + 2852316.

Almost surely, 2^68455308 is an apocalyptic number.

It is an amenable number.

68455308 is an abundant number, since it is smaller than the sum of its proper divisors (91273772).

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

68455308 is a wasteful number, since it uses less digits than its factorization.

68455308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5704616 (or 5704614 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 68455308 is about 8273.7722956340. The cubic root of 68455308 is about 409.0744698938.

The spelling of 68455308 in words is "sixty-eight million, four hundred fifty-five thousand, three hundred eight".