24428497 has 4 divisors (see below), whose sum is σ = 25024356. Its totient is φ = 23832640.

The previous prime is 24428491. The next prime is 24428531. The reversal of 24428497 is 79482442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4322241 + 20106256 = 2079^2 + 4484^2 .

It is a cyclic number.

It is not a de Polignac number, because 24428497 - 2³ = 24428489 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24428491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297868 + ... + 297949.

It is an arithmetic number, because the mean of its divisors is an integer number (6256089).

Almost surely, 2^24428497 is an apocalyptic number.

It is an amenable number.

24428497 is a deficient number, since it is larger than the sum of its proper divisors (595859).

24428497 is an equidigital number, since it uses as much as digits as its factorization.

24428497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595858.

The product of its digits is 129024, while the sum is 40.

The square root of 24428497 is about 4942.5192968768. The cubic root of 24428497 is about 290.1564633290.

The spelling of 24428497 in words is "twenty-four million, four hundred twenty-eight thousand, four hundred ninety-seven".