223402120 has 64 divisors (see below), whose sum is σ = 526809600. Its totient is φ = 85155840.

The previous prime is 223402103. The next prime is 223402129. The reversal of 223402120 is 21204322.

It is a junction number, because it is equal to n+sod(n) for n = 223402094 and 223402103.

It is not an unprimeable number, because it can be changed into a prime (223402129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 81736 + ... + 84424.

It is an arithmetic number, because the mean of its divisors is an integer number (8231400).

Almost surely, 2^223402120 is an apocalyptic number.

223402120 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 223402120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263404800).

223402120 is an abundant number, since it is smaller than the sum of its proper divisors (303407480).

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

223402120 is a wasteful number, since it uses less digits than its factorization.

223402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798 (or 2794 counting only the distinct ones).

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

The square root of 223402120 is about 14946.6424323324. The cubic root of 223402120 is about 606.7769808386.

Adding to 223402120 its reverse (21204322), we get a palindrome (244606442).

The spelling of 223402120 in words is "two hundred twenty-three million, four hundred two thousand, one hundred twenty".