43440442232449 has 2 divisors, whose sum is σ = 43440442232450. Its totient is φ = 43440442232448.

The previous prime is 43440442232441. The next prime is 43440442232461. The reversal of 43440442232449 is 94423224404434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39481806737025 + 3958635495424 = 6283455^2 + 1989632^2 .

It is a cyclic number.

It is not a de Polignac number, because 43440442232449 - 2³ = 43440442232441 is a prime.

It is not a weakly prime, because it can be changed into another prime (43440442232441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21720221116224 + 21720221116225.

It is an arithmetic number, because the mean of its divisors is an integer number (21720221116225).

Almost surely, 2^{43440442232449} is an apocalyptic number.

It is an amenable number.

43440442232449 is a deficient number, since it is larger than the sum of its proper divisors (1).

43440442232449 is an equidigital number, since it uses as much as digits as its factorization.

43440442232449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10616832, while the sum is 49.

The spelling of 43440442232449 in words is "forty-three trillion, four hundred forty billion, four hundred forty-two million, two hundred thirty-two thousand, four hundred forty-nine".