423221332 has 6 divisors (see below), whose sum is σ = 740637338. Its totient is φ = 211610664.

The previous prime is 423221327. The next prime is 423221347. The reversal of 423221332 is 233122324.

It can be written as a sum of positive squares in only one way, i.e., 276423876 + 146797456 = 16626^2 + 12116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52902663 + ... + 52902670.

Almost surely, 2^423221332 is an apocalyptic number.

It is an amenable number.

423221332 is a deficient number, since it is larger than the sum of its proper divisors (317416006).

423221332 is a wasteful number, since it uses less digits than its factorization.

423221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105805337 (or 105805335 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 423221332 is about 20572.3438625743. The cubic root of 423221332 is about 750.7969791693.

Adding to 423221332 its reverse (233122324), we get a palindrome (656343656).

The spelling of 423221332 in words is "four hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty-two".