4231530 has 24 divisors (see below), whose sum is σ = 11002212. Its totient is φ = 1128384.

The previous prime is 4231483. The next prime is 4231537. The reversal of 4231530 is 351324.

It can be written as a sum of positive squares in 2 ways, for example, as 4004001 + 227529 = 2001^2 + 477^2 .

It is a super-2 number, since 2×4231530² = 35811692281800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 4⁶ + 2²¹ + 3² + 1 + 5⁹ + 3¹¹ + 0 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4231537) 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, 23419 + ... + 23598.

Almost surely, 2^4231530 is an apocalyptic number.

4231530 is an abundant number, since it is smaller than the sum of its proper divisors (6770682).

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

4231530 is a wasteful number, since it uses less digits than its factorization.

4231530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47030 (or 47027 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 4231530 is about 2057.0683022204. The cubic root of 4231530 is about 161.7455997918.

Adding to 4231530 its reverse (351324), we get a palindrome (4582854).

It can be divided in two parts, 4231 and 530, that added together give a square (4761 = 69²).

The spelling of 4231530 in words is "four million, two hundred thirty-one thousand, five hundred thirty".