68081408 has 36 divisors (see below), whose sum is σ = 143059560. Its totient is φ = 32246784.

The previous prime is 68081407. The next prime is 68081411. The reversal of 68081408 is 80418086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68081401) 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, 2135 + ... + 11862.

Almost surely, 2^68081408 is an apocalyptic number.

It is an amenable number.

68081408 is an abundant number, since it is smaller than the sum of its proper divisors (74978152).

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

68081408 is a wasteful number, since it uses less digits than its factorization.

68081408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14032 (or 14018 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 68081408 is about 8251.1458598185. The cubic root of 68081408 is about 408.3283272837.

The spelling of 68081408 in words is "sixty-eight million, eighty-one thousand, four hundred eight".