43420412 has 48 divisors (see below), whose sum is σ = 91348992. Its totient is φ = 17656320.

The previous prime is 43420393. The next prime is 43420423. The reversal of 43420412 is 21402434.

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, 122828 + ... + 123180.

It is an arithmetic number, because the mean of its divisors is an integer number (1903104).

Almost surely, 2^43420412 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 43420412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45674496).

43420412 is an abundant number, since it is smaller than the sum of its proper divisors (47928580).

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

43420412 is a wasteful number, since it uses less digits than its factorization.

43420412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 43420412 is about 6589.4166661397. The cubic root of 43420412 is about 351.4778652577.

Adding to 43420412 its reverse (21402434), we get a palindrome (64822846).

The spelling of 43420412 in words is "forty-three million, four hundred twenty thousand, four hundred twelve".