678044356 has 24 divisors (see below), whose sum is σ = 1307801376. Its totient is φ = 305022720.

The previous prime is 678044293. The next prime is 678044357. The reversal of 678044356 is 653440876.

It is not an unprimeable number, because it can be changed into a prime (678044357) 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, 75166 + ... + 83701.

It is an arithmetic number, because the mean of its divisors is an integer number (54491724).

Almost surely, 2^678044356 is an apocalyptic number.

It is an amenable number.

678044356 is a deficient number, since it is larger than the sum of its proper divisors (629757020).

678044356 is a wasteful number, since it uses less digits than its factorization.

678044356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158979 (or 158977 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 678044356 is about 26039.2848596116. The cubic root of 678044356 is about 878.5221217027.

The spelling of 678044356 in words is "six hundred seventy-eight million, forty-four thousand, three hundred fifty-six".