43430641 has 2 divisors, whose sum is σ = 43430642. Its totient is φ = 43430640.

The previous prime is 43430633. The next prime is 43430677. The reversal of 43430641 is 14603434.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 9790641 = 5800^2 + 3129^2 .

It is a cyclic number.

It is not a de Polignac number, because 43430641 - 2³ = 43430633 is a prime.

It is not a weakly prime, because it can be changed into another prime (43430741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21715320 + 21715321.

It is an arithmetic number, because the mean of its divisors is an integer number (21715321).

Almost surely, 2^43430641 is an apocalyptic number.

It is an amenable number.

43430641 is a deficient number, since it is larger than the sum of its proper divisors (1).

43430641 is an equidigital number, since it uses as much as digits as its factorization.

43430641 is an evil number, because the sum of its binary digits is even.

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

The square root of 43430641 is about 6590.1927892892. The cubic root of 43430641 is about 351.5054635280.

The spelling of 43430641 in words is "forty-three million, four hundred thirty thousand, six hundred forty-one".