24264221 has 2 divisors, whose sum is σ = 24264222. Its totient is φ = 24264220.

The previous prime is 24264211. The next prime is 24264223. The reversal of 24264221 is 12246242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15912121 + 8352100 = 3989^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 24264221 - 2¹⁴ = 24247837 is a prime.

Together with 24264223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24264223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12132110 + 12132111.

It is an arithmetic number, because the mean of its divisors is an integer number (12132111).

Almost surely, 2^24264221 is an apocalyptic number.

It is an amenable number.

24264221 is a deficient number, since it is larger than the sum of its proper divisors (1).

24264221 is an equidigital number, since it uses as much as digits as its factorization.

24264221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 23.

The square root of 24264221 is about 4925.8726130504. The cubic root of 24264221 is about 289.5045881688.

The spelling of 24264221 in words is "twenty-four million, two hundred sixty-four thousand, two hundred twenty-one".