618828 has 48 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 172224.

The previous prime is 618823. The next prime is 618833. The reversal of 618828 is 828816.

618828 is a nontrivial binomial coefficient, being equal to C(1113, 2).

It is an interprime number because it is at equal distance from previous prime (618823) and next prime (618833).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (618823) by changing a digit.

618828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4383 + ... + 4521.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2⁶¹⁸⁸²⁸ is an apocalyptic number.

618828 is the 1112-nd triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846720).

618828 is an abundant number, since it is smaller than the sum of its proper divisors (1074612).

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

618828 is a wasteful number, since it uses less digits than its factorization.

618828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 204 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The square root of 618828 is about 786.6562146198. The cubic root of 618828 is about 85.2164265535.

It can be divided in two parts, 6188 and 28, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 618828 in words is "six hundred eighteen thousand, eight hundred twenty-eight".