234404020 has 24 divisors (see below), whose sum is σ = 508128768. Its totient is φ = 90736800.

The previous prime is 234404003. The next prime is 234404021. The reversal of 234404020 is 20404432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234404021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188416 + ... + 189655.

It is an arithmetic number, because the mean of its divisors is an integer number (21172032).

Almost surely, 2^234404020 is an apocalyptic number.

234404020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234404020 is an abundant number, since it is smaller than the sum of its proper divisors (273724748).

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

234404020 is a wasteful number, since it uses less digits than its factorization.

234404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378111 (or 378109 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 234404020 is about 15310.2586522893. The cubic root of 234404020 is about 616.5784644567.

Adding to 234404020 its reverse (20404432), we get a palindrome (254808452).

The spelling of 234404020 in words is "two hundred thirty-four million, four hundred four thousand, twenty".