234404043220 has 24 divisors (see below), whose sum is σ = 513650600064. Its totient is φ = 89685025056.

The previous prime is 234404043191. The next prime is 234404043239. The reversal of 234404043220 is 22340404432.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254786544 + ... + 254787463.

It is an arithmetic number, because the mean of its divisors is an integer number (21402108336).

Almost surely, 2^234404043220 is an apocalyptic number.

234404043220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234404043220 is an abundant number, since it is smaller than the sum of its proper divisors (279246556844).

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

234404043220 is a wasteful number, since it uses less digits than its factorization.

234404043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509574039 (or 509574037 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 234404043220 its reverse (22340404432), we get a palindrome (256744447652).

The spelling of 234404043220 in words is "two hundred thirty-four billion, four hundred four million, forty-three thousand, two hundred twenty".