24202421 has 8 divisors (see below), whose sum is σ = 25173984. Its totient is φ = 23249520.

The previous prime is 24202379. The next prime is 24202427. The reversal of 24202421 is 12420242.

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 24202421 - 2⁶ = 24202357 is a prime.

It is a super-2 number, since 2×24202421² = 1171514364522482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24202421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24202427) 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 in 7 ways as a sum of consecutive naturals, for example, 1991 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (3146748).

Almost surely, 2^24202421 is an apocalyptic number.

It is an amenable number.

24202421 is a deficient number, since it is larger than the sum of its proper divisors (971563).

24202421 is an equidigital number, since it uses as much as digits as its factorization.

24202421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 24202421 is about 4919.5956134626. The cubic root of 24202421 is about 289.2585936703.

Adding to 24202421 its reverse (12420242), we get a palindrome (36622663).

The spelling of 24202421 in words is "twenty-four million, two hundred two thousand, four hundred twenty-one".