423633020 has 12 divisors (see below), whose sum is σ = 889629384. Its totient is φ = 169453200.

The previous prime is 423632999. The next prime is 423633061. The reversal of 423633020 is 20336324.

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, 10590806 + ... + 10590845.

It is an arithmetic number, because the mean of its divisors is an integer number (74135782).

Almost surely, 2^423633020 is an apocalyptic number.

It is an amenable number.

423633020 is an abundant number, since it is smaller than the sum of its proper divisors (465996364).

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

423633020 is a wasteful number, since it uses less digits than its factorization.

423633020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21181660 (or 21181658 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 423633020 is about 20582.3472908218. The cubic root of 423633020 is about 751.0403458697.

Adding to 423633020 its reverse (20336324), we get a palindrome (443969344).

The spelling of 423633020 in words is "four hundred twenty-three million, six hundred thirty-three thousand, twenty".