43425420 has 96 divisors (see below), whose sum is σ = 129110016. Its totient is φ = 10886400.

The previous prime is 43425419. The next prime is 43425433. The reversal of 43425420 is 2452434.

43425420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68505 + ... + 69135.

It is an arithmetic number, because the mean of its divisors is an integer number (1344896).

Almost surely, 2^43425420 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 43425420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64555008).

43425420 is an abundant number, since it is smaller than the sum of its proper divisors (85684596).

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

43425420 is a wasteful number, since it uses less digits than its factorization.

43425420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 43425420 is about 6589.7966584713. The cubic root of 43425420 is about 351.4913775929.

Adding to 43425420 its reverse (2452434), we get a palindrome (45877854).

The spelling of 43425420 in words is "forty-three million, four hundred twenty-five thousand, four hundred twenty".