43420230 has 96 divisors (see below), whose sum is σ = 132245568. Its totient is φ = 9682560.

The previous prime is 43420229. The next prime is 43420231. The reversal of 43420230 is 3202434.

43420230 is a `hidden beast` number, since 434 + 2 + 0 + 230 = 666.

It is an interprime number because it is at equal distance from previous prime (43420229) and next prime (43420231).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43420231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1059010 + ... + 1059050.

It is an arithmetic number, because the mean of its divisors is an integer number (1377558).

Almost surely, 2^43420230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43420230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66122784).

43420230 is an abundant number, since it is smaller than the sum of its proper divisors (88825338).

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

43420230 is an equidigital number, since it uses as much as digits as its factorization.

43420230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 58 counting only the distinct ones).

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

The square root of 43420230 is about 6589.4028561016. The cubic root of 43420230 is about 351.4773741748.

Adding to 43420230 its reverse (3202434), we get a palindrome (46622664).

The spelling of 43420230 in words is "forty-three million, four hundred twenty thousand, two hundred thirty".