230443020 has 144 divisors (see below), whose sum is σ = 753392640. Its totient is φ = 56827008.

The previous prime is 230443009. The next prime is 230443027. The reversal of 230443020 is 20344032.

230443020 is a `hidden beast` number, since 230 + 4 + 430 + 2 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 230442984 and 230443002.

It is not an unprimeable number, because it can be changed into a prime (230443027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146277 + ... + 147843.

Almost surely, 2^230443020 is an apocalyptic number.

230443020 is a gapful number since it is divisible by the number (20) 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 230443020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376696320).

230443020 is an abundant number, since it is smaller than the sum of its proper divisors (522949620).

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

230443020 is a wasteful number, since it uses less digits than its factorization.

230443020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 230443020 is about 15180.3497983413. The cubic root of 230443020 is about 613.0856993641.

Adding to 230443020 its reverse (20344032), we get a palindrome (250787052).

The spelling of 230443020 in words is "two hundred thirty million, four hundred forty-three thousand, twenty".