220303040 has 28 divisors (see below), whose sum is σ = 524597376. Its totient is φ = 88121088.

The previous prime is 220303037. The next prime is 220303067. The reversal of 220303040 is 40303022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343904 + ... + 344543.

Almost surely, 2^220303040 is an apocalyptic number.

220303040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220303040 is an abundant number, since it is smaller than the sum of its proper divisors (304294336).

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

220303040 is an equidigital number, since it uses as much as digits as its factorization.

220303040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688464 (or 688454 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 220303040 is about 14842.6089350895. The cubic root of 220303040 is about 603.9581275886.

Adding to 220303040 its reverse (40303022), we get a palindrome (260606062).

The spelling of 220303040 in words is "two hundred twenty million, three hundred three thousand, forty".