43452641 has 2 divisors, whose sum is σ = 43452642. Its totient is φ = 43452640.

The previous prime is 43452637. The next prime is 43452671. The reversal of 43452641 is 14625434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28398241 + 15054400 = 5329^2 + 3880^2 .

It is a cyclic number.

It is not a de Polignac number, because 43452641 - 2² = 43452637 is a prime.

It is not a weakly prime, because it can be changed into another prime (43452611) 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 as a sum of consecutive naturals, namely, 21726320 + 21726321.

It is an arithmetic number, because the mean of its divisors is an integer number (21726321).

Almost surely, 2^43452641 is an apocalyptic number.

It is an amenable number.

43452641 is a deficient number, since it is larger than the sum of its proper divisors (1).

43452641 is an equidigital number, since it uses as much as digits as its factorization.

43452641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 29.

The square root of 43452641 is about 6591.8617248847. The cubic root of 43452641 is about 351.5648057699.

The spelling of 43452641 in words is "forty-three million, four hundred fifty-two thousand, six hundred forty-one".