1078668 has 54 divisors (see below), whose sum is σ = 2912364. Its totient is φ = 336528.

The previous prime is 1078657. The next prime is 1078673. The reversal of 1078668 is 8668701.

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12955 + ... + 13037.

2^1078668 is an apocalyptic number.

1078668 is a gapful number since it is divisible by the number (18) 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 1078668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456182).

1078668 is an abundant number, since it is smaller than the sum of its proper divisors (1833696).

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

1078668 is a wasteful number, since it uses less digits than its factorization.

1078668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1078668 is about 1038.5894280225. The cubic root of 1078668 is about 102.5563600416.

The spelling of 1078668 in words is "one million, seventy-eight thousand, six hundred sixty-eight".