423152320 has 56 divisors (see below), whose sum is σ = 1009461024. Its totient is φ = 168953856.

The previous prime is 423152309. The next prime is 423152329. The reversal of 423152320 is 23251324.

It is a junction number, because it is equal to n+sod(n) for n = 423152291 and 423152300.

It is not an unprimeable number, because it can be changed into a prime (423152329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273469 + ... + 275011.

Almost surely, 2^423152320 is an apocalyptic number.

423152320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423152320 is an abundant number, since it is smaller than the sum of its proper divisors (586308704).

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

423152320 is a wasteful number, since it uses less digits than its factorization.

423152320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 423152320 is about 20570.6664938208. Note that the first 3 decimals coincide. The cubic root of 423152320 is about 750.7561677280.

The spelling of 423152320 in words is "four hundred twenty-three million, one hundred fifty-two thousand, three hundred twenty".