618330 has 16 divisors (see below), whose sum is σ = 1484064. Its totient is φ = 164880.

The previous prime is 618329. The next prime is 618337. The reversal of 618330 is 33816.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 618297 and 618306.

It is not an unprimeable number, because it can be changed into a prime (618337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10276 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (92754).

2⁶¹⁸³³⁰ is an apocalyptic number.

618330 is an abundant number, since it is smaller than the sum of its proper divisors (865734).

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

618330 is a wasteful number, since it uses less digits than its factorization.

618330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20621.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 618330 is about 786.3396212833. The cubic root of 618330 is about 85.1935611965.

It can be divided in two parts, 6 and 18330, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 618330 in words is "six hundred eighteen thousand, three hundred thirty".