68720382 has 24 divisors (see below), whose sum is σ = 149047704. Its totient is φ = 22883184.

The previous prime is 68720369. The next prime is 68720411. The reversal of 68720382 is 28302786.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30093 + ... + 32295.

It is an arithmetic number, because the mean of its divisors is an integer number (6210321).

Almost surely, 2^68720382 is an apocalyptic number.

68720382 is an abundant number, since it is smaller than the sum of its proper divisors (80327322).

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

68720382 is a wasteful number, since it uses less digits than its factorization.

68720382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944 (or 3941 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 68720382 is about 8289.7757508874. The cubic root of 68720382 is about 409.6017985901.

The spelling of 68720382 in words is "sixty-eight million, seven hundred twenty thousand, three hundred eighty-two".