43340461 has 4 divisors (see below), whose sum is σ = 43402300. Its totient is φ = 43278624.

The previous prime is 43340417. The next prime is 43340477. The reversal of 43340461 is 16404334.

It is a happy number.

43340461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4040100 + 39300361 = 2010^2 + 6269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43340461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43340411) 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 3 ways as a sum of consecutive naturals, for example, 29856 + ... + 31273.

It is an arithmetic number, because the mean of its divisors is an integer number (10850575).

Almost surely, 2^43340461 is an apocalyptic number.

It is an amenable number.

43340461 is a deficient number, since it is larger than the sum of its proper divisors (61839).

43340461 is an equidigital number, since it uses as much as digits as its factorization.

43340461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61838.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 43340461 is about 6583.3472489304. The cubic root of 43340461 is about 351.2620046302.

Adding to 43340461 its reverse (16404334), we get a palindrome (59744795).

The spelling of 43340461 in words is "forty-three million, three hundred forty thousand, four hundred sixty-one".