68404072 has 32 divisors (see below), whose sum is σ = 143337600. Its totient is φ = 30332800.

The previous prime is 68404067. The next prime is 68404117. The reversal of 68404072 is 27040486.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5872 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (4479300).

Almost surely, 2^68404072 is an apocalyptic number.

It is an amenable number.

68404072 is an abundant number, since it is smaller than the sum of its proper divisors (74933528).

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

68404072 is a wasteful number, since it uses less digits than its factorization.

68404072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19017 (or 19013 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 68404072 is about 8270.6754258646. The cubic root of 68404072 is about 408.9723859143.

The spelling of 68404072 in words is "sixty-eight million, four hundred four thousand, seventy-two".