68024449 has 4 divisors (see below), whose sum is σ = 68044036. Its totient is φ = 68004864.

The previous prime is 68024441. The next prime is 68024477. The reversal of 68024449 is 94442086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94442086 = 2 ⋅47221043.

It can be written as a sum of positive squares in 2 ways, for example, as 10036224 + 57988225 = 3168^2 + 7615^2 .

It is a cyclic number.

It is not a de Polignac number, because 68024449 - 2³ = 68024441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68024441) 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 in 3 ways as a sum of consecutive naturals, for example, 3024 + ... + 12049.

It is an arithmetic number, because the mean of its divisors is an integer number (17011009).

Almost surely, 2^68024449 is an apocalyptic number.

It is an amenable number.

68024449 is a deficient number, since it is larger than the sum of its proper divisors (19587).

68024449 is a wasteful number, since it uses less digits than its factorization.

68024449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19586.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 68024449 is about 8247.6935563829. The cubic root of 68024449 is about 408.2144221663.

The spelling of 68024449 in words is "sixty-eight million, twenty-four thousand, four hundred forty-nine".