678338270 has 16 divisors (see below), whose sum is σ = 1232422128. Its totient is φ = 268799040.

The previous prime is 678338257. The next prime is 678338291. The reversal of 678338270 is 72833876.

It is a congruent number.

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, 315911 + ... + 318050.

It is an arithmetic number, because the mean of its divisors is an integer number (77026383).

Almost surely, 2^678338270 is an apocalyptic number.

678338270 is a deficient number, since it is larger than the sum of its proper divisors (554083858).

678338270 is a wasteful number, since it uses less digits than its factorization.

678338270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634075.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 678338270 is about 26044.9279131273. The cubic root of 678338270 is about 878.6490419396.

The spelling of 678338270 in words is "six hundred seventy-eight million, three hundred thirty-eight thousand, two hundred seventy".