43224001 has 4 divisors (see below), whose sum is σ = 43237312. Its totient is φ = 43210692.

The previous prime is 43223977. The next prime is 43224017. The reversal of 43224001 is 10042234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10042234 = 2 ⋅5021117.

It is a cyclic number.

It is not a de Polignac number, because 43224001 - 2⁹ = 43223489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43224091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780 + ... + 9466.

It is an arithmetic number, because the mean of its divisors is an integer number (10809328).

Almost surely, 2^43224001 is an apocalyptic number.

It is an amenable number.

43224001 is a deficient number, since it is larger than the sum of its proper divisors (13311).

43224001 is an equidigital number, since it uses as much as digits as its factorization.

43224001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13310.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 43224001 is about 6574.4962544670. The cubic root of 43224001 is about 350.9470974346.

Adding to 43224001 its reverse (10042234), we get a palindrome (53266235).

The spelling of 43224001 in words is "forty-three million, two hundred twenty-four thousand, one".