678203480 has 96 divisors (see below), whose sum is σ = 1636867440. Its totient is φ = 252806400.

The previous prime is 678203473. The next prime is 678203489. The reversal of 678203480 is 84302876.

It is a super-2 number, since 2×678203480² = 919919920568220800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678203489) 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 23 ways as a sum of consecutive naturals, for example, 967130 + ... + 967830.

Almost surely, 2^678203480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678203480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818433720).

678203480 is an abundant number, since it is smaller than the sum of its proper divisors (958663960).

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

678203480 is a wasteful number, since it uses less digits than its factorization.

678203480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 678203480 is about 26042.3401406248. The cubic root of 678203480 is about 878.5908404223.

The spelling of 678203480 in words is "six hundred seventy-eight million, two hundred three thousand, four hundred eighty".