321433436 has 12 divisors (see below), whose sum is σ = 569286312. Its totient is φ = 158780208.

The previous prime is 321433421. The next prime is 321433447. The reversal of 321433436 is 634334123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321433399 and 321433408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483755 + ... + 484418.

It is an arithmetic number, because the mean of its divisors is an integer number (47440526).

Almost surely, 2^321433436 is an apocalyptic number.

It is an amenable number.

321433436 is a deficient number, since it is larger than the sum of its proper divisors (247852876).

321433436 is a wasteful number, since it uses less digits than its factorization.

321433436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968260 (or 968258 counting only the distinct ones).

The product of its digits is 15552, while the sum is 29.

The square root of 321433436 is about 17928.5648059180. The cubic root of 321433436 is about 685.0101662583.

Adding to 321433436 its reverse (634334123), we get a palindrome (955767559).

The spelling of 321433436 in words is "three hundred twenty-one million, four hundred thirty-three thousand, four hundred thirty-six".