68457408 has 28 divisors (see below), whose sum is σ = 181127400. Its totient is φ = 22819072.

The previous prime is 68457401. The next prime is 68457421. The reversal of 68457408 is 80475486.

It is a self number, because there is not a number n which added to its sum of digits gives 68457408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68457401) 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, 178083 + ... + 178466.

Almost surely, 2^68457408 is an apocalyptic number.

It is an amenable number.

68457408 is an abundant number, since it is smaller than the sum of its proper divisors (112669992).

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

68457408 is a wasteful number, since it uses less digits than its factorization.

68457408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356564 (or 356554 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 68457408 is about 8273.8992017065. The cubic root of 68457408 is about 409.0786529033.

The spelling of 68457408 in words is "sixty-eight million, four hundred fifty-seven thousand, four hundred eight".