43442941 has 2 divisors, whose sum is σ = 43442942. Its totient is φ = 43442940.

The previous prime is 43442933. The next prime is 43442977. The reversal of 43442941 is 14924434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40005625 + 3437316 = 6325^2 + 1854^2 .

It is a cyclic number.

It is not a de Polignac number, because 43442941 - 2³ = 43442933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43442141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21721470 + 21721471.

It is an arithmetic number, because the mean of its divisors is an integer number (21721471).

Almost surely, 2^43442941 is an apocalyptic number.

It is an amenable number.

43442941 is a deficient number, since it is larger than the sum of its proper divisors (1).

43442941 is an equidigital number, since it uses as much as digits as its factorization.

43442941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 31.

The square root of 43442941 is about 6591.1259280945. The cubic root of 43442941 is about 351.5386437053.

The spelling of 43442941 in words is "forty-three million, four hundred forty-two thousand, nine hundred forty-one".