420431230 has 16 divisors (see below), whose sum is σ = 757072080. Its totient is φ = 168106752.

The previous prime is 420431201. The next prime is 420431239. The reversal of 420431230 is 32134024.

It is a junction number, because it is equal to n+sod(n) for n = 420431198 and 420431207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420431239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25057 + ... + 38323.

It is an arithmetic number, because the mean of its divisors is an integer number (47317005).

Almost surely, 2^420431230 is an apocalyptic number.

420431230 is a deficient number, since it is larger than the sum of its proper divisors (336640850).

420431230 is a wasteful number, since it uses less digits than its factorization.

420431230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16443.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 420431230 is about 20504.4197674550. The cubic root of 420431230 is about 749.1434547386.

Adding to 420431230 its reverse (32134024), we get a palindrome (452565254).

The spelling of 420431230 in words is "four hundred twenty million, four hundred thirty-one thousand, two hundred thirty".