24220401 has 4 divisors (see below), whose sum is σ = 32293872. Its totient is φ = 16146932.

The previous prime is 24220387. The next prime is 24220411. The reversal of 24220401 is 10402242.

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 24220401 - 2⁶ = 24220337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (24220411) 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 3 ways as a sum of consecutive naturals, for example, 4036731 + ... + 4036736.

It is an arithmetic number, because the mean of its divisors is an integer number (8073468).

Almost surely, 2^24220401 is an apocalyptic number.

It is an amenable number.

24220401 is a deficient number, since it is larger than the sum of its proper divisors (8073471).

24220401 is an equidigital number, since it uses as much as digits as its factorization.

24220401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8073470.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 24220401 is about 4921.4226601665. The cubic root of 24220401 is about 289.3302060948.

Adding to 24220401 its reverse (10402242), we get a palindrome (34622643).

The spelling of 24220401 in words is "twenty-four million, two hundred twenty thousand, four hundred one".