233404420 has 12 divisors (see below), whose sum is σ = 490149324. Its totient is φ = 93361760.

The previous prime is 233404393. The next prime is 233404429. The reversal of 233404420 is 24404332.

It can be written as a sum of positive squares in 2 ways, for example, as 161188416 + 72216004 = 12696^2 + 8498^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233404391 and 233404400.

It is not an unprimeable number, because it can be changed into a prime (233404429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5835091 + ... + 5835130.

It is an arithmetic number, because the mean of its divisors is an integer number (40845777).

Almost surely, 2^233404420 is an apocalyptic number.

233404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233404420 is an abundant number, since it is smaller than the sum of its proper divisors (256744904).

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

233404420 is a wasteful number, since it uses less digits than its factorization.

233404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11670230 (or 11670228 counting only the distinct ones).

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

The square root of 233404420 is about 15277.5789966866. The cubic root of 233404420 is about 615.7007633315.

Adding to 233404420 its reverse (24404332), we get a palindrome (257808752).

The spelling of 233404420 in words is "two hundred thirty-three million, four hundred four thousand, four hundred twenty".