423020456 has 16 divisors (see below), whose sum is σ = 802720800. Its totient is φ = 208961584.

The previous prime is 423020453. The next prime is 423020459. The reversal of 423020456 is 654020324.

It is an interprime number because it is at equal distance from previous prime (423020453) and next prime (423020459).

It is not an unprimeable number, because it can be changed into a prime (423020453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317876 + ... + 319203.

It is an arithmetic number, because the mean of its divisors is an integer number (50170050).

Almost surely, 2^423020456 is an apocalyptic number.

It is an amenable number.

423020456 is a deficient number, since it is larger than the sum of its proper divisors (379700344).

423020456 is a wasteful number, since it uses less digits than its factorization.

423020456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637168 (or 637164 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 423020456 is about 20567.4610975687. The cubic root of 423020456 is about 750.6781753269.

The spelling of 423020456 in words is "four hundred twenty-three million, twenty thousand, four hundred fifty-six".