24428129 has 8 divisors (see below), whose sum is σ = 28051680. Its totient is φ = 21038400.

The previous prime is 24428113. The next prime is 24428137. The reversal of 24428129 is 92182442.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 24428129 - 2⁴ = 24428113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24428095 and 24428104.

It is not an unprimeable number, because it can be changed into a prime (24428149) 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, 58232 + ... + 58649.

It is an arithmetic number, because the mean of its divisors is an integer number (3506460).

Almost surely, 2^24428129 is an apocalyptic number.

It is an amenable number.

24428129 is a deficient number, since it is larger than the sum of its proper divisors (3623551).

24428129 is a wasteful number, since it uses less digits than its factorization.

24428129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116911.

The product of its digits is 9216, while the sum is 32.

The square root of 24428129 is about 4942.4820687586. The cubic root of 24428129 is about 290.1550063132.

The spelling of 24428129 in words is "twenty-four million, four hundred twenty-eight thousand, one hundred twenty-nine".