234432220 has 24 divisors (see below), whose sum is σ = 537063408. Its totient is φ = 85248000.

The previous prime is 234432217. The next prime is 234432239. The reversal of 234432220 is 22234432.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 234432191 and 234432200.

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, 532581 + ... + 533020.

It is an arithmetic number, because the mean of its divisors is an integer number (22377642).

Almost surely, 2^234432220 is an apocalyptic number.

234432220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234432220 is an abundant number, since it is smaller than the sum of its proper divisors (302631188).

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

234432220 is a wasteful number, since it uses less digits than its factorization.

234432220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065621 (or 1065619 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 234432220 is about 15311.1795757218. The cubic root of 234432220 is about 616.6031893106.

Adding to 234432220 its reverse (22234432), we get a palindrome (256666652).

The spelling of 234432220 in words is "two hundred thirty-four million, four hundred thirty-two thousand, two hundred twenty".