43401043 has 4 divisors (see below), whose sum is σ = 49601200. Its totient is φ = 37200888.

The previous prime is 43401031. The next prime is 43401047. The reversal of 43401043 is 34010434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34010434 = 2 ⋅17005217.

It is a cyclic number.

It is not a de Polignac number, because 43401043 - 2¹³ = 43392851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43401043.

It is not an unprimeable number, because it can be changed into a prime (43401047) 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, 3100068 + ... + 3100081.

It is an arithmetic number, because the mean of its divisors is an integer number (12400300).

Almost surely, 2^43401043 is an apocalyptic number.

43401043 is a deficient number, since it is larger than the sum of its proper divisors (6200157).

43401043 is an equidigital number, since it uses as much as digits as its factorization.

43401043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200156.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 43401043 is about 6587.9467969922. The cubic root of 43401043 is about 351.4255950083.

Adding to 43401043 its reverse (34010434), we get a palindrome (77411477).

The spelling of 43401043 in words is "forty-three million, four hundred one thousand, forty-three".