4231020 has 48 divisors (see below), whose sum is σ = 11950848. Its totient is φ = 1118400.

The previous prime is 4230997. The next prime is 4231027. The reversal of 4231020 is 201324.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 4230987 and 4231005.

It is not an unprimeable number, because it can be changed into a prime (4231027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8827 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (248976).

Almost surely, 2^4231020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5975424).

4231020 is an abundant number, since it is smaller than the sum of its proper divisors (7719828).

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

4231020 is a wasteful number, since it uses less digits than its factorization.

4231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4231020 is about 2056.9443356591. The cubic root of 4231020 is about 161.7391014669.

Adding to 4231020 its reverse (201324), we get a palindrome (4432344).

The spelling of 4231020 in words is "four million, two hundred thirty-one thousand, twenty".