68943020 has 48 divisors (see below), whose sum is σ = 153118560. Its totient is φ = 26002944.

The previous prime is 68943019. The next prime is 68943023. The reversal of 68943020 is 2034986.

It is not an unprimeable number, because it can be changed into a prime (68943023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150632 + ... + 151088.

It is an arithmetic number, because the mean of its divisors is an integer number (3189970).

Almost surely, 2^68943020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68943020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76559280).

68943020 is an abundant number, since it is smaller than the sum of its proper divisors (84175540).

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

68943020 is a wasteful number, since it uses less digits than its factorization.

68943020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 68943020 is about 8303.1933615929. The cubic root of 68943020 is about 410.0436598360.

The spelling of 68943020 in words is "sixty-eight million, nine hundred forty-three thousand, twenty".