20240824 has 8 divisors (see below), whose sum is σ = 37951560. Its totient is φ = 10120408.

The previous prime is 20240821. The next prime is 20240873. The reversal of 20240824 is 42804202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20240795 and 20240804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265044 + ... + 1265059.

It is an arithmetic number, because the mean of its divisors is an integer number (4743945).

Almost surely, 2^20240824 is an apocalyptic number.

It is an amenable number.

20240824 is a deficient number, since it is larger than the sum of its proper divisors (17710736).

20240824 is a wasteful number, since it uses less digits than its factorization.

20240824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530109 (or 2530105 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 20240824 is about 4498.9803289190. The cubic root of 20240824 is about 272.5269125848.

The spelling of 20240824 in words is "twenty million, two hundred forty thousand, eight hundred twenty-four".