43421601 has 8 divisors (see below), whose sum is σ = 58187200. Its totient is φ = 28801872.

The previous prime is 43421597. The next prime is 43421603. The reversal of 43421601 is 10612434.

43421601 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 43421601 - 2² = 43421597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43421603) 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, 35770 + ... + 36963.

It is an arithmetic number, because the mean of its divisors is an integer number (7273400).

Almost surely, 2^43421601 is an apocalyptic number.

It is an amenable number.

43421601 is a deficient number, since it is larger than the sum of its proper divisors (14765599).

43421601 is a wasteful number, since it uses less digits than its factorization.

43421601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72935.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 43421601 is about 6589.5068859513. The cubic root of 43421601 is about 351.4810734521.

The spelling of 43421601 in words is "forty-three million, four hundred twenty-one thousand, six hundred one".