224312020 has 12 divisors (see below), whose sum is σ = 471055284. Its totient is φ = 89724800.

The previous prime is 224312017. The next prime is 224312027. The reversal of 224312020 is 20213422.

It can be written as a sum of positive squares in 2 ways, for example, as 29095236 + 195216784 = 5394^2 + 13972^2 .

It is a junction number, because it is equal to n+sod(n) for n = 224311985 and 224312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224312027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5607781 + ... + 5607820.

It is an arithmetic number, because the mean of its divisors is an integer number (39254607).

Almost surely, 2^224312020 is an apocalyptic number.

224312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224312020 is an abundant number, since it is smaller than the sum of its proper divisors (246743264).

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

224312020 is a wasteful number, since it uses less digits than its factorization.

224312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215610 (or 11215608 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 224312020 is about 14977.0497762410. The cubic root of 224312020 is about 607.5996505963.

Adding to 224312020 its reverse (20213422), we get a palindrome (244525442).

The spelling of 224312020 in words is "two hundred twenty-four million, three hundred twelve thousand, twenty".