1768878 has 40 divisors (see below), whose sum is σ = 4051080. Its totient is φ = 576720.

The previous prime is 1768873. The next prime is 1768903. The reversal of 1768878 is 8788671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768873) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9793 + ... + 9971.

It is an arithmetic number, because the mean of its divisors is an integer number (101277).

2^1768878 is an apocalyptic number.

1768878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1768878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2025540).

1768878 is an abundant number, since it is smaller than the sum of its proper divisors (2282202).

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

1768878 is a wasteful number, since it uses less digits than its factorization.

1768878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 245 counting only the distinct ones).

The product of its digits is 150528, while the sum is 45.

The square root of 1768878 is about 1329.9917292976. The cubic root of 1768878 is about 120.9388849670.

It can be divided in two parts, 17688 and 78, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 1768878 in words is "one million, seven hundred sixty-eight thousand, eight hundred seventy-eight".