24042521 has 12 divisors (see below), whose sum is σ = 25694592. Its totient is φ = 22484616.

The previous prime is 24042511. The next prime is 24042593. The reversal of 24042521 is 12524042.

It is a happy number.

It is not a de Polignac number, because 24042521 - 2¹⁴ = 24026137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24042493 and 24042502.

It is not an unprimeable number, because it can be changed into a prime (24042511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24380 + ... + 25346.

It is an arithmetic number, because the mean of its divisors is an integer number (2141216).

Almost surely, 2^24042521 is an apocalyptic number.

It is an amenable number.

24042521 is a deficient number, since it is larger than the sum of its proper divisors (1652071).

24042521 is an equidigital number, since it uses as much as digits as its factorization.

24042521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 24042521 is about 4903.3173464503. The cubic root of 24042521 is about 288.6201632626.

Adding to 24042521 its reverse (12524042), we get a palindrome (36566563).

The spelling of 24042521 in words is "twenty-four million, forty-two thousand, five hundred twenty-one".