68420330 has 48 divisors (see below), whose sum is σ = 141878304. Its totient is φ = 23556960.

The previous prime is 68420323. The next prime is 68420347. The reversal of 68420330 is 3302486.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68420330.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38849 + ... + 40571.

It is an arithmetic number, because the mean of its divisors is an integer number (2955798).

Almost surely, 2^68420330 is an apocalyptic number.

68420330 is an abundant number, since it is smaller than the sum of its proper divisors (73457974).

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

68420330 is a wasteful number, since it uses less digits than its factorization.

68420330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 68420330 is about 8271.6582376208. The cubic root of 68420330 is about 409.0047843089.

The spelling of 68420330 in words is "sixty-eight million, four hundred twenty thousand, three hundred thirty".