43423601 has 4 divisors (see below), whose sum is σ = 46763892. Its totient is φ = 40083312.

The previous prime is 43423579. The next prime is 43423603. The reversal of 43423601 is 10632434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15808576 + 27615025 = 3976^2 + 5255^2 .

It is a cyclic number.

It is not a de Polignac number, because 43423601 - 2¹⁸ = 43161457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43423603) 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, 1670126 + ... + 1670151.

It is an arithmetic number, because the mean of its divisors is an integer number (11690973).

Almost surely, 2^43423601 is an apocalyptic number.

It is an amenable number.

43423601 is a deficient number, since it is larger than the sum of its proper divisors (3340291).

43423601 is a wasteful number, since it uses less digits than its factorization.

43423601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340290.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 43423601 is about 6589.6586406278. The cubic root of 43423601 is about 351.4864697782.

The spelling of 43423601 in words is "forty-three million, four hundred twenty-three thousand, six hundred one".