24428929 has 4 divisors (see below), whose sum is σ = 27918784. Its totient is φ = 20939076.

The previous prime is 24428909. The next prime is 24428969. The reversal of 24428929 is 92982442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24428929 - 2⁷ = 24428801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24428891 and 24428900.

It is not an unprimeable number, because it can be changed into a prime (24428909) 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, 1744917 + ... + 1744930.

It is an arithmetic number, because the mean of its divisors is an integer number (6979696).

Almost surely, 2^24428929 is an apocalyptic number.

It is an amenable number.

24428929 is a deficient number, since it is larger than the sum of its proper divisors (3489855).

24428929 is an equidigital number, since it uses as much as digits as its factorization.

24428929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489854.

The product of its digits is 82944, while the sum is 40.

The square root of 24428929 is about 4942.5629990927. The cubic root of 24428929 is about 290.1581737201.

The spelling of 24428929 in words is "twenty-four million, four hundred twenty-eight thousand, nine hundred twenty-nine".