423453220 has 24 divisors (see below), whose sum is σ = 890414784. Its totient is φ = 169159776.

The previous prime is 423453203. The next prime is 423453223. The reversal of 423453220 is 22354324.

It is not an unprimeable number, because it can be changed into a prime (423453223) 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 in 7 ways as a sum of consecutive naturals, for example, 2289 + ... + 29191.

It is an arithmetic number, because the mean of its divisors is an integer number (37100616).

Almost surely, 2^423453220 is an apocalyptic number.

It is an amenable number.

423453220 is an abundant number, since it is smaller than the sum of its proper divisors (466961564).

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

423453220 is a wasteful number, since it uses less digits than its factorization.

423453220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27699 (or 27697 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 423453220 is about 20577.9790066955. The cubic root of 423453220 is about 750.9340776638.

The spelling of 423453220 in words is "four hundred twenty-three million, four hundred fifty-three thousand, two hundred twenty".