68768730 has 32 divisors (see below), whose sum is σ = 183384000. Its totient is φ = 18338256.

The previous prime is 68768699. The next prime is 68768743. The reversal of 68768730 is 3786786.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127080 + ... + 127619.

It is an arithmetic number, because the mean of its divisors is an integer number (5730750).

Almost surely, 2^68768730 is an apocalyptic number.

68768730 is an abundant number, since it is smaller than the sum of its proper divisors (114615270).

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

68768730 is a wasteful number, since it uses less digits than its factorization.

68768730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254715 (or 254709 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 68768730 is about 8292.6913604692. The cubic root of 68768730 is about 409.6978340737.

The spelling of 68768730 in words is "sixty-eight million, seven hundred sixty-eight thousand, seven hundred thirty".