423521030 has 8 divisors (see below), whose sum is σ = 762337872. Its totient is φ = 169408408.

The previous prime is 423521009. The next prime is 423521047. The reversal of 423521030 is 30125324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423520993 and 423521011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21176042 + ... + 21176061.

It is an arithmetic number, because the mean of its divisors is an integer number (95292234).

Almost surely, 2^423521030 is an apocalyptic number.

423521030 is a deficient number, since it is larger than the sum of its proper divisors (338816842).

423521030 is a wasteful number, since it uses less digits than its factorization.

423521030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42352110.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 423521030 is about 20579.6265758152. The cubic root of 423521030 is about 750.9741593222.

Adding to 423521030 its reverse (30125324), we get a palindrome (453646354).

The spelling of 423521030 in words is "four hundred twenty-three million, five hundred twenty-one thousand, thirty".