223442020 has 48 divisors (see below), whose sum is σ = 480130560. Its totient is φ = 87325056.

The previous prime is 223442003. The next prime is 223442029. The reversal of 223442020 is 20244322.

It is not an unprimeable number, because it can be changed into a prime (223442029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162054 + ... + 163426.

It is an arithmetic number, because the mean of its divisors is an integer number (10002720).

Almost surely, 2^223442020 is an apocalyptic number.

223442020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223442020 is an abundant number, since it is smaller than the sum of its proper divisors (256688540).

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

223442020 is a wasteful number, since it uses less digits than its factorization.

223442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 223442020 is about 14947.9771206675. The cubic root of 223442020 is about 606.8131024898.

Adding to 223442020 its reverse (20244322), we get a palindrome (243686342).

The spelling of 223442020 in words is "two hundred twenty-three million, four hundred forty-two thousand, twenty".