24820428 has 24 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 8252560.

The previous prime is 24820423. The next prime is 24820463. The reversal of 24820428 is 82402842.

It is a super-2 number, since 2×24820428² = 1232107292206368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 24820395 and 24820404.

It is not an unprimeable number, because it can be changed into a prime (24820421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2773 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^24820428 is an apocalyptic number.

It is an amenable number.

24820428 is an abundant number, since it is smaller than the sum of its proper divisors (33240372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24820428 is a wasteful number, since it uses less digits than its factorization.

24820428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237 (or 5235 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 24820428 is about 4982.0104375643. The cubic root of 24820428 is about 291.6999952481.

The spelling of 24820428 in words is "twenty-four million, eight hundred twenty thousand, four hundred twenty-eight".