43424449 has 2 divisors, whose sum is σ = 43424450. Its totient is φ = 43424448.

The previous prime is 43424441. The next prime is 43424461. The reversal of 43424449 is 94442434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40551424 + 2873025 = 6368^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 43424449 - 2³ = 43424441 is a prime.

It is equal to p_2628682 and since 43424449 and 2628682 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (43424441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712224 + 21712225.

It is an arithmetic number, because the mean of its divisors is an integer number (21712225).

Almost surely, 2^43424449 is an apocalyptic number.

It is an amenable number.

43424449 is a deficient number, since it is larger than the sum of its proper divisors (1).

43424449 is an equidigital number, since it uses as much as digits as its factorization.

43424449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 34.

The square root of 43424449 is about 6589.7229835555. The cubic root of 43424449 is about 351.4887577704.

The spelling of 43424449 in words is "forty-three million, four hundred twenty-four thousand, four hundred forty-nine".