24828145 has 4 divisors (see below), whose sum is σ = 29793780. Its totient is φ = 19862512.

The previous prime is 24828131. The next prime is 24828149. The reversal of 24828145 is 54182842.

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 11607649 + 13220496 = 3407^2 + 3636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24828145 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24828145.

It is not an unprimeable number, because it can be changed into a prime (24828149) 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, 2482810 + ... + 2482819.

It is an arithmetic number, because the mean of its divisors is an integer number (7448445).

Almost surely, 2^24828145 is an apocalyptic number.

It is an amenable number.

24828145 is a deficient number, since it is larger than the sum of its proper divisors (4965635).

24828145 is an equidigital number, since it uses as much as digits as its factorization.

24828145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965634.

The product of its digits is 20480, while the sum is 34.

The square root of 24828145 is about 4982.7848639089. The cubic root of 24828145 is about 291.7302232470.

The spelling of 24828145 in words is "twenty-four million, eight hundred twenty-eight thousand, one hundred forty-five".