4230520 has 64 divisors (see below), whose sum is σ = 11275200. Its totient is φ = 1397760.

The previous prime is 4230493. The next prime is 4230571. The reversal of 4230520 is 250324.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4230494 and 4230503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7860 + ... + 8380.

It is an arithmetic number, because the mean of its divisors is an integer number (176175).

Almost surely, 2^4230520 is an apocalyptic number.

4230520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4230520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5637600).

4230520 is an abundant number, since it is smaller than the sum of its proper divisors (7044680).

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

4230520 is a wasteful number, since it uses less digits than its factorization.

4230520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 4230520 is about 2056.8227925614. The cubic root of 4230520 is about 161.7327300532.

Adding to 4230520 its reverse (250324), we get a palindrome (4480844).

The spelling of 4230520 in words is "four million, two hundred thirty thousand, five hundred twenty".