43642201 has 8 divisors (see below), whose sum is σ = 45993024. Its totient is φ = 41329200.

The previous prime is 43642189. The next prime is 43642211. The reversal of 43642201 is 10224634.

It is a happy number.

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

It is not a de Polignac number, because 43642201 - 2⁷ = 43642073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43642211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7071 + ... + 11716.

It is an arithmetic number, because the mean of its divisors is an integer number (5749128).

Almost surely, 2^43642201 is an apocalyptic number.

It is an amenable number.

43642201 is a deficient number, since it is larger than the sum of its proper divisors (2350823).

43642201 is a wasteful number, since it uses less digits than its factorization.

43642201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18911.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 43642201 is about 6606.2244133847. The cubic root of 43642201 is about 352.0752921972.

Adding to 43642201 its reverse (10224634), we get a palindrome (53866835).

The spelling of 43642201 in words is "forty-three million, six hundred forty-two thousand, two hundred one".