68023830 has 32 divisors (see below), whose sum is σ = 186580224. Its totient is φ = 15548256.

The previous prime is 68023799. The next prime is 68023831. The reversal of 68023830 is 3832086.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68023831) by changing a digit.

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, 161752 + ... + 162171.

It is an arithmetic number, because the mean of its divisors is an integer number (5830632).

Almost surely, 2^68023830 is an apocalyptic number.

68023830 is an abundant number, since it is smaller than the sum of its proper divisors (118556394).

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

68023830 is a wasteful number, since it uses less digits than its factorization.

68023830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323940.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 68023830 is about 8247.6560306550. The cubic root of 68023830 is about 408.2131839571.

The spelling of 68023830 in words is "sixty-eight million, twenty-three thousand, eight hundred thirty".