43402220 has 12 divisors (see below), whose sum is σ = 91144704. Its totient is φ = 17360880.

The previous prime is 43402217. The next prime is 43402237. The reversal of 43402220 is 2220434.

43402220 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 3 ways as a sum of consecutive naturals, for example, 1085036 + ... + 1085075.

It is an arithmetic number, because the mean of its divisors is an integer number (7595392).

Almost surely, 2^43402220 is an apocalyptic number.

It is an amenable number.

43402220 is an abundant number, since it is smaller than the sum of its proper divisors (47742484).

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

43402220 is a wasteful number, since it uses less digits than its factorization.

43402220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170120 (or 2170118 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 43402220 is about 6588.0361261912. The cubic root of 43402220 is about 351.4287717690.

Adding to 43402220 its reverse (2220434), we get a palindrome (45622654).

The spelling of 43402220 in words is "forty-three million, four hundred two thousand, two hundred twenty".