420334231 has 12 divisors (see below), whose sum is σ = 452794752. Its totient is φ = 388848704.

The previous prime is 420334217. The next prime is 420334237. The reversal of 420334231 is 132433024.

It is a happy number.

It is not a de Polignac number, because 420334231 - 2¹¹ = 420332183 is a prime.

It is a super-2 number, since 2×420334231² = 353361731500722722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420334237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55626 + ... + 62728.

It is an arithmetic number, because the mean of its divisors is an integer number (37732896).

Almost surely, 2^420334231 is an apocalyptic number.

420334231 is a deficient number, since it is larger than the sum of its proper divisors (32460521).

420334231 is an equidigital number, since it uses as much as digits as its factorization.

420334231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238 (or 7179 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 420334231 is about 20502.0543117025. The cubic root of 420334231 is about 749.0858379000.

Adding to 420334231 its reverse (132433024), we get a palindrome (552767255).

It can be divided in two parts, 42033 and 4231, that added together give a palindrome (46264).

The spelling of 420334231 in words is "four hundred twenty million, three hundred thirty-four thousand, two hundred thirty-one".