43346081 has 4 divisors (see below), whose sum is σ = 43396164. Its totient is φ = 43296000.

The previous prime is 43346077. The next prime is 43346089. The reversal of 43346081 is 18064334.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18064334 = 2 ⋅9032167.

It can be written as a sum of positive squares in 2 ways, for example, as 5017600 + 38328481 = 2240^2 + 6191^2 .

It is a cyclic number.

It is not a de Polignac number, because 43346081 - 2² = 43346077 is a prime.

It is a super-2 number, since 2×43346081² = 3757765476117122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43346089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23720 + ... + 25481.

It is an arithmetic number, because the mean of its divisors is an integer number (10849041).

Almost surely, 2^43346081 is an apocalyptic number.

It is an amenable number.

43346081 is a deficient number, since it is larger than the sum of its proper divisors (50083).

43346081 is an equidigital number, since it uses as much as digits as its factorization.

43346081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50082.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 43346081 is about 6583.7740696351. The cubic root of 43346081 is about 351.2771868033.

The spelling of 43346081 in words is "forty-three million, three hundred forty-six thousand, eighty-one".