678035238 has 32 divisors (see below), whose sum is σ = 1374513504. Its totient is φ = 222953472.

The previous prime is 678035227. The next prime is 678035251. The reversal of 678035238 is 832530876.

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 678035238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194406 + ... + 197862.

It is an arithmetic number, because the mean of its divisors is an integer number (42953547).

Almost surely, 2^678035238 is an apocalyptic number.

678035238 is an abundant number, since it is smaller than the sum of its proper divisors (696478266).

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

678035238 is a wasteful number, since it uses less digits than its factorization.

678035238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 678035238 is about 26039.1097774098. The cubic root of 678035238 is about 878.5181837103.

The spelling of 678035238 in words is "six hundred seventy-eight million, thirty-five thousand, two hundred thirty-eight".