423002128 has 10 divisors (see below), whose sum is σ = 819566654. Its totient is φ = 211501056.

The previous prime is 423002123. The next prime is 423002141. The reversal of 423002128 is 821200324.

It can be written as a sum of positive squares in only one way, i.e., 280629504 + 142372624 = 16752^2 + 11932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 423002099 and 423002108.

It is not an unprimeable number, because it can be changed into a prime (423002123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13218801 + ... + 13218832.

Almost surely, 2^423002128 is an apocalyptic number.

It is an amenable number.

423002128 is a deficient number, since it is larger than the sum of its proper divisors (396564526).

423002128 is a wasteful number, since it uses less digits than its factorization.

423002128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26437641 (or 26437635 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 423002128 is about 20567.0155345884. The cubic root of 423002128 is about 750.6673337485.

The spelling of 423002128 in words is "four hundred twenty-three million, two thousand, one hundred twenty-eight".