218283030 has 96 divisors (see below), whose sum is σ = 651253824. Its totient is φ = 49690368.

The previous prime is 218283019. The next prime is 218283031. The reversal of 218283030 is 30382812.

It is a junction number, because it is equal to n+sod(n) for n = 218282985 and 218283003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218283031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 199164 + ... + 200256.

It is an arithmetic number, because the mean of its divisors is an integer number (6783894).

Almost surely, 2^218283030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218283030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325626912).

218283030 is an abundant number, since it is smaller than the sum of its proper divisors (432970794).

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

218283030 is a wasteful number, since it uses less digits than its factorization.

218283030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 218283030 is about 14774.4045565295. The cubic root of 218283030 is about 602.1065123545.

The spelling of 218283030 in words is "two hundred eighteen million, two hundred eighty-three thousand, thirty".