220030240 has 24 divisors (see below), whose sum is σ = 519821820. Its totient is φ = 88012032.

The previous prime is 220030193. The next prime is 220030243. The reversal of 220030240 is 42030022.

It can be written as a sum of positive squares in 2 ways, for example, as 214212496 + 5817744 = 14636^2 + 2412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220030240.

It is not an unprimeable number, because it can be changed into a prime (220030243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687435 + ... + 687754.

Almost surely, 2^220030240 is an apocalyptic number.

220030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220030240 is an abundant number, since it is smaller than the sum of its proper divisors (299791580).

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

220030240 is a wasteful number, since it uses less digits than its factorization.

220030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375204 (or 1375196 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 220030240 is about 14833.4163293558. The cubic root of 220030240 is about 603.7087319817.

Adding to 220030240 its reverse (42030022), we get a palindrome (262060262).

The spelling of 220030240 in words is "two hundred twenty million, thirty thousand, two hundred forty".