420531230 has 48 divisors (see below), whose sum is σ = 890526960. Its totient is φ = 142547328.

The previous prime is 420531211. The next prime is 420531247. The reversal of 420531230 is 32135024.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38789 + ... + 48431.

It is an arithmetic number, because the mean of its divisors is an integer number (18552645).

Almost surely, 2^420531230 is an apocalyptic number.

420531230 is an abundant number, since it is smaller than the sum of its proper divisors (469995730).

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

420531230 is a wasteful number, since it uses less digits than its factorization.

420531230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9753 (or 9746 counting only the distinct ones).

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

The square root of 420531230 is about 20506.8581211262. The cubic root of 420531230 is about 749.2028448770.

Adding to 420531230 its reverse (32135024), we get a palindrome (452666254).

The spelling of 420531230 in words is "four hundred twenty million, five hundred thirty-one thousand, two hundred thirty".