678249000 has 768 divisors, whose sum is σ = 2943682560. Its totient is φ = 138240000.

The previous prime is 678248993. The next prime is 678249041. The reversal of 678249000 is 942876.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 21878985 + ... + 21879015.

It is an arithmetic number, because the mean of its divisors is an integer number (3832920).

Almost surely, 2^678249000 is an apocalyptic number.

678249000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678249000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471841280).

678249000 is an abundant number, since it is smaller than the sum of its proper divisors (2265433560).

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

678249000 is a wasteful number, since it uses less digits than its factorization.

678249000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 678249000 is about 26043.2140873587. The cubic root of 678249000 is about 878.6104965489.

The spelling of 678249000 in words is "six hundred seventy-eight million, two hundred forty-nine thousand".