423228732 has 36 divisors (see below), whose sum is σ = 1012255608. Its totient is φ = 137628800.

The previous prime is 423228713. The next prime is 423228739. The reversal of 423228732 is 237822324.

It is a junction number, because it is equal to n+sod(n) for n = 423228693 and 423228702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423228739) 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 11 ways as a sum of consecutive naturals, for example, 9682 + ... + 30662.

Almost surely, 2^423228732 is an apocalyptic number.

It is an amenable number.

423228732 is an abundant number, since it is smaller than the sum of its proper divisors (589026876).

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

423228732 is a wasteful number, since it uses less digits than its factorization.

423228732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070 (or 21027 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 423228732 is about 20572.5237148970. The cubic root of 423228732 is about 750.8013550241.

The spelling of 423228732 in words is "four hundred twenty-three million, two hundred twenty-eight thousand, seven hundred thirty-two".