220440300 has 72 divisors (see below), whose sum is σ = 639656976. Its totient is φ = 58613760.

The previous prime is 220440289. The next prime is 220440329. The reversal of 220440300 is 3044022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220440300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129052 + ... + 130748.

Almost surely, 2^220440300 is an apocalyptic number.

220440300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220440300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319828488).

220440300 is an abundant number, since it is smaller than the sum of its proper divisors (419216676).

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

220440300 is a wasteful number, since it uses less digits than its factorization.

220440300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 220440300 is about 14847.2320652706. The cubic root of 220440300 is about 604.0835337590.

Adding to 220440300 its reverse (3044022), we get a palindrome (223484322).

The spelling of 220440300 in words is "two hundred twenty million, four hundred forty thousand, three hundred".