24218401 has 2 divisors, whose sum is σ = 24218402. Its totient is φ = 24218400.

The previous prime is 24218399. The next prime is 24218419. The reversal of 24218401 is 10481242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23512801 + 705600 = 4849^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 24218401 - 2¹ = 24218399 is a prime.

Together with 24218399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (24210401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12109200 + 12109201.

It is an arithmetic number, because the mean of its divisors is an integer number (12109201).

Almost surely, 2^24218401 is an apocalyptic number.

It is an amenable number.

24218401 is a deficient number, since it is larger than the sum of its proper divisors (1).

24218401 is an equidigital number, since it uses as much as digits as its factorization.

24218401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 24218401 is about 4921.2194626942. The cubic root of 24218401 is about 289.3222420601.

Adding to 24218401 its reverse (10481242), we get a palindrome (34699643).

The spelling of 24218401 in words is "twenty-four million, two hundred eighteen thousand, four hundred one".