423331616 has 12 divisors (see below), whose sum is σ = 833434182. Its totient is φ = 211665792.

The previous prime is 423331613. The next prime is 423331633. The reversal of 423331616 is 616133324.

It can be written as a sum of positive squares in only one way, i.e., 243235216 + 180096400 = 15596^2 + 13420^2 .

It is not an unprimeable number, because it can be changed into a prime (423331613) by changing a digit.

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, 6614525 + ... + 6614588.

Almost surely, 2^423331616 is an apocalyptic number.

It is an amenable number.

423331616 is a deficient number, since it is larger than the sum of its proper divisors (410102566).

423331616 is a wasteful number, since it uses less digits than its factorization.

423331616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13229123 (or 13229115 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 423331616 is about 20575.0240826105. The cubic root of 423331616 is about 750.8621883138.

The spelling of 423331616 in words is "four hundred twenty-three million, three hundred thirty-one thousand, six hundred sixteen".