43380420 has 48 divisors (see below), whose sum is σ = 127861440. Its totient is φ = 10958976.

The previous prime is 43380397. The next prime is 43380431. The reversal of 43380420 is 2408334.

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, 17887 + ... + 20166.

It is an arithmetic number, because the mean of its divisors is an integer number (2663780).

Almost surely, 2^43380420 is an apocalyptic number.

It is an amenable number.

43380420 is an abundant number, since it is smaller than the sum of its proper divisors (84481020).

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

43380420 is a wasteful number, since it uses less digits than its factorization.

43380420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38084 (or 38082 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 43380420 is about 6586.3814040792. The cubic root of 43380420 is about 351.3699235484.

Adding to 43380420 its reverse (2408334), we get a palindrome (45788754).

The spelling of 43380420 in words is "forty-three million, three hundred eighty thousand, four hundred twenty".