224218530 has 56 divisors (see below), whose sum is σ = 605132892. Its totient is φ = 59789664.

The previous prime is 224218523. The next prime is 224218571. The reversal of 224218530 is 35812422.

It can be written as a sum of positive squares in 2 ways, for example, as 221325129 + 2893401 = 14877^2 + 1701^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 224218494 and 224218503.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8089 + ... + 22668.

Almost surely, 2^224218530 is an apocalyptic number.

224218530 is an abundant number, since it is smaller than the sum of its proper divisors (380914362).

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

224218530 is an equidigital number, since it uses as much as digits as its factorization.

224218530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30782 (or 30767 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 224218530 is about 14973.9283422888. The cubic root of 224218530 is about 607.5152259558.

The spelling of 224218530 in words is "two hundred twenty-four million, two hundred eighteen thousand, five hundred thirty".