233021320 has 64 divisors (see below), whose sum is σ = 630748800. Its totient is φ = 75686400.

The previous prime is 233021297. The next prime is 233021333. The reversal of 233021320 is 23120332.

It is a junction number, because it is equal to n+sod(n) for n = 233021294 and 233021303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16581 + ... + 27220.

It is an arithmetic number, because the mean of its divisors is an integer number (9855450).

Almost surely, 2^233021320 is an apocalyptic number.

233021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233021320 is an abundant number, since it is smaller than the sum of its proper divisors (397727480).

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

233021320 is a wasteful number, since it uses less digits than its factorization.

233021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43838 (or 43834 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 233021320 is about 15265.0358663188. The cubic root of 233021320 is about 615.3637172551.

Adding to 233021320 its reverse (23120332), we get a palindrome (256141652).

The spelling of 233021320 in words is "two hundred thirty-three million, twenty-one thousand, three hundred twenty".