233220020 has 24 divisors (see below), whose sum is σ = 534286368. Its totient is φ = 84807200.

The previous prime is 233219999. The next prime is 233220049. The reversal of 233220020 is 20022332.

It is a junction number, because it is equal to n+sod(n) for n = 233219977 and 233220004.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 529826 + ... + 530265.

It is an arithmetic number, because the mean of its divisors is an integer number (22261932).

Almost surely, 2^233220020 is an apocalyptic number.

233220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233220020 is an abundant number, since it is smaller than the sum of its proper divisors (301066348).

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

233220020 is a wasteful number, since it uses less digits than its factorization.

233220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060111 (or 1060109 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 233220020 is about 15271.5428166247. The cubic root of 233220020 is about 615.5385768382.

Adding to 233220020 its reverse (20022332), we get a palindrome (253242352).

The spelling of 233220020 in words is "two hundred thirty-three million, two hundred twenty thousand, twenty".