43342221 has 8 divisors (see below), whose sum is σ = 62235040. Its totient is φ = 26672112.

The previous prime is 43342213. The next prime is 43342241. The reversal of 43342221 is 12224334.

43342221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43342221 - 2³ = 43342213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43342241) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 555631 + ... + 555708.

It is an arithmetic number, because the mean of its divisors is an integer number (7779380).

Almost surely, 2^43342221 is an apocalyptic number.

It is an amenable number.

43342221 is a deficient number, since it is larger than the sum of its proper divisors (18892819).

43342221 is a wasteful number, since it uses less digits than its factorization.

43342221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111355.

The product of its digits is 1152, while the sum is 21.

The square root of 43342221 is about 6583.4809181769. The cubic root of 43342221 is about 351.2667593309.

Adding to 43342221 its reverse (12224334), we get a palindrome (55566555).

It can be divided in two parts, 4334 and 2221, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 43342221 in words is "forty-three million, three hundred forty-two thousand, two hundred twenty-one".