234533421 has 16 divisors (see below), whose sum is σ = 350536320. Its totient is φ = 154969920.

The previous prime is 234533419. The next prime is 234533441. The reversal of 234533421 is 124335432.

234533421 is a `hidden beast` number, since 234 + 5 + 3 + 3 + 421 = 666.

It is not a de Polignac number, because 234533421 - 2¹ = 234533419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234533441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35385 + ... + 41486.

It is an arithmetic number, because the mean of its divisors is an integer number (21908520).

Almost surely, 2^234533421 is an apocalyptic number.

It is an amenable number.

234533421 is a deficient number, since it is larger than the sum of its proper divisors (116002899).

234533421 is a wasteful number, since it uses less digits than its factorization.

234533421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76993 (or 76987 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 234533421 is about 15314.4840265678. The cubic root of 234533421 is about 616.6919027737.

Adding to 234533421 its reverse (124335432), we get a palindrome (358868853).

The spelling of 234533421 in words is "two hundred thirty-four million, five hundred thirty-three thousand, four hundred twenty-one".