43942027 has 2 divisors, whose sum is σ = 43942028. Its totient is φ = 43942026.

The previous prime is 43942013. The next prime is 43942043. The reversal of 43942027 is 72024934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43942027 - 2¹⁹ = 43417739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43942027.

It is not a weakly prime, because it can be changed into another prime (43949027) 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, 21971013 + 21971014.

It is an arithmetic number, because the mean of its divisors is an integer number (21971014).

Almost surely, 2^43942027 is an apocalyptic number.

43942027 is a deficient number, since it is larger than the sum of its proper divisors (1).

43942027 is an equidigital number, since it uses as much as digits as its factorization.

43942027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 43942027 is about 6628.8782610635. The cubic root of 43942027 is about 352.8797162322.

The spelling of 43942027 in words is "forty-three million, nine hundred forty-two thousand, twenty-seven".