421234232 has 8 divisors (see below), whose sum is σ = 789814200. Its totient is φ = 210617112.

The previous prime is 421234207. The next prime is 421234243. The reversal of 421234232 is 232432124.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 421234198 and 421234207.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26327132 + ... + 26327147.

It is an arithmetic number, because the mean of its divisors is an integer number (98726775).

Almost surely, 2^421234232 is an apocalyptic number.

It is an amenable number.

421234232 is a deficient number, since it is larger than the sum of its proper divisors (368579968).

421234232 is a wasteful number, since it uses less digits than its factorization.

421234232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52654285 (or 52654281 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 421234232 is about 20523.9916195656. The cubic root of 421234232 is about 749.6200932232.

Adding to 421234232 its reverse (232432124), we get a palindrome (653666356).

The spelling of 421234232 in words is "four hundred twenty-one million, two hundred thirty-four thousand, two hundred thirty-two".