224332020 has 144 divisors (see below), whose sum is σ = 748657728. Its totient is φ = 53921280.

The previous prime is 224332019. The next prime is 224332037. The reversal of 224332020 is 20233422.

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

224332020 is a Rhonda number in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 224331984 and 224332002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270847 + ... + 271673.

It is an arithmetic number, because the mean of its divisors is an integer number (5199012).

Almost surely, 2^224332020 is an apocalyptic number.

224332020 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 224332020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374328864).

224332020 is an abundant number, since it is smaller than the sum of its proper divisors (524325708).

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

224332020 is a wasteful number, since it uses less digits than its factorization.

224332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 224332020 is about 14977.7174495983. The cubic root of 224332020 is about 607.6177082285.

Adding to 224332020 its reverse (20233422), we get a palindrome (244565442).

The spelling of 224332020 in words is "two hundred twenty-four million, three hundred thirty-two thousand, twenty".