43342081 has 2 divisors, whose sum is σ = 43342082. Its totient is φ = 43342080.

The previous prime is 43342073. The next prime is 43342109. The reversal of 43342081 is 18024334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23619600 + 19722481 = 4860^2 + 4441^2 .

It is a cyclic number.

It is not a de Polignac number, because 43342081 - 2³ = 43342073 is a prime.

It is a super-2 number, since 2×43342081² = 3757071970821122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43342381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21671040 + 21671041.

It is an arithmetic number, because the mean of its divisors is an integer number (21671041).

Almost surely, 2^43342081 is an apocalyptic number.

It is an amenable number.

43342081 is a deficient number, since it is larger than the sum of its proper divisors (1).

43342081 is an equidigital number, since it uses as much as digits as its factorization.

43342081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 43342081 is about 6583.4702854953. The cubic root of 43342081 is about 351.2663811208.

The spelling of 43342081 in words is "forty-three million, three hundred forty-two thousand, eighty-one".