68395580 has 24 divisors (see below), whose sum is σ = 156688560. Its totient is φ = 24871040.

The previous prime is 68395571. The next prime is 68395589. The reversal of 68395580 is 8559386.

It is an interprime number because it is at equal distance from previous prime (68395571) and next prime (68395589).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68395589) by changing a digit.

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, 155225 + ... + 155664.

It is an arithmetic number, because the mean of its divisors is an integer number (6528690).

Almost surely, 2^68395580 is an apocalyptic number.

It is an amenable number.

68395580 is an abundant number, since it is smaller than the sum of its proper divisors (88292980).

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

68395580 is a wasteful number, since it uses less digits than its factorization.

68395580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310909 (or 310907 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 68395580 is about 8270.1620298517. The cubic root of 68395580 is about 408.9554613018.

The spelling of 68395580 in words is "sixty-eight million, three hundred ninety-five thousand, five hundred eighty".