4230920 has 48 divisors (see below), whose sum is σ = 10081260. Its totient is φ = 1597824.

The previous prime is 4230917. The next prime is 4230923. The reversal of 4230920 is 290324.

It is an interprime number because it is at equal distance from previous prime (4230917) and next prime (4230923).

It can be written as a sum of positive squares in 2 ways, for example, as 4056196 + 174724 = 2014^2 + 418^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4230892 and 4230901.

It is not an unprimeable number, because it can be changed into a prime (4230923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14294 + ... + 14586.

Almost surely, 2^4230920 is an apocalyptic number.

4230920 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 4230920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5040630).

4230920 is an abundant number, since it is smaller than the sum of its proper divisors (5850340).

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

4230920 is a wasteful number, since it uses less digits than its factorization.

4230920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 4230920 is about 2056.9200276141. The cubic root of 4230920 is about 161.7378272243.

The spelling of 4230920 in words is "four million, two hundred thirty thousand, nine hundred twenty".