68422660 has 24 divisors (see below), whose sum is σ = 144037656. Its totient is φ = 27302400.

The previous prime is 68422649. The next prime is 68422703. The reversal of 68422660 is 6622486.

It can be written as a sum of positive squares in 4 ways, for example, as 2585664 + 65836996 = 1608^2 + 8114^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4710 + ... + 12610.

It is an arithmetic number, because the mean of its divisors is an integer number (6001569).

Almost surely, 2^68422660 is an apocalyptic number.

It is an amenable number.

68422660 is an abundant number, since it is smaller than the sum of its proper divisors (75614996).

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

68422660 is a wasteful number, since it uses less digits than its factorization.

68422660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8343 (or 8341 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 68422660 is about 8271.7990787978. The cubic root of 68422660 is about 409.0094270339.

The spelling of 68422660 in words is "sixty-eight million, four hundred twenty-two thousand, six hundred sixty".