24226421 has 2 divisors, whose sum is σ = 24226422. Its totient is φ = 24226420.

The previous prime is 24226417. The next prime is 24226427. The reversal of 24226421 is 12462242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23522500 + 703921 = 4850^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 24226421 - 2² = 24226417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24226427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12113210 + 12113211.

It is an arithmetic number, because the mean of its divisors is an integer number (12113211).

Almost surely, 2^24226421 is an apocalyptic number.

It is an amenable number.

24226421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24226421 is an equidigital number, since it uses as much as digits as its factorization.

24226421 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 24226421 is about 4922.0342339321. The cubic root of 24226421 is about 289.3541751936.

Adding to 24226421 its reverse (12462242), we get a palindrome (36688663).

The spelling of 24226421 in words is "twenty-four million, two hundred twenty-six thousand, four hundred twenty-one".