232220220 has 24 divisors (see below), whose sum is σ = 650216784. Its totient is φ = 61925376.

The previous prime is 232220207. The next prime is 232220257. The reversal of 232220220 is 22022232.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 232220220.

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, 1935109 + ... + 1935228.

It is an arithmetic number, because the mean of its divisors is an integer number (27092366).

Almost surely, 2^232220220 is an apocalyptic number.

232220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232220220 is an abundant number, since it is smaller than the sum of its proper divisors (417996564).

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

232220220 is a wasteful number, since it uses less digits than its factorization.

232220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870349 (or 3870347 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 232220220 is about 15238.7735726993. The cubic root of 232220220 is about 614.6577248059.

Adding to 232220220 its reverse (22022232), we get a palindrome (254242452).

The spelling of 232220220 in words is "two hundred thirty-two million, two hundred twenty thousand, two hundred twenty".