232512220 has 24 divisors (see below), whose sum is σ = 495155808. Its totient is φ = 91694400.

The previous prime is 232512199. The next prime is 232512257. The reversal of 232512220 is 22215232.

It is a super-4 number, since 4×232512220⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80451 + ... + 83290.

It is an arithmetic number, because the mean of its divisors is an integer number (20631492).

Almost surely, 2^232512220 is an apocalyptic number.

232512220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232512220 is an abundant number, since it is smaller than the sum of its proper divisors (262643588).

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

232512220 is a wasteful number, since it uses less digits than its factorization.

232512220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163821 (or 163819 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 232512220 is about 15248.3513862975. The cubic root of 232512220 is about 614.9152459934.

Adding to 232512220 its reverse (22215232), we get a palindrome (254727452).

The spelling of 232512220 in words is "two hundred thirty-two million, five hundred twelve thousand, two hundred twenty".