220224240 has 60 divisors (see below), whose sum is σ = 739588824. Its totient is φ = 58726272.

The previous prime is 220224227. The next prime is 220224293. The reversal of 220224240 is 42422022.

220224240 is a `hidden beast` number, since 220 + 22 + 424 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152214 + ... + 153653.

Almost surely, 2^220224240 is an apocalyptic number.

220224240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220224240 is an abundant number, since it is smaller than the sum of its proper divisors (519364584).

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

220224240 is a wasteful number, since it uses less digits than its factorization.

220224240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305886 (or 305877 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 220224240 is about 14839.9541778268. The cubic root of 220224240 is about 603.8861092513.

Adding to 220224240 its reverse (42422022), we get a palindrome (262646262).

It can be divided in two parts, 22022 and 4240, that added together give a palindrome (26262).

The spelling of 220224240 in words is "two hundred twenty million, two hundred twenty-four thousand, two hundred forty".