244305421 has 2 divisors, whose sum is σ = 244305422. Its totient is φ = 244305420.

The previous prime is 244305409. The next prime is 244305433. The reversal of 244305421 is 124503442.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (244305409) and next prime (244305433).

It can be written as a sum of positive squares in only one way, i.e., 207763396 + 36542025 = 14414^2 + 6045^2 .

It is a cyclic number.

It is not a de Polignac number, because 244305421 - 2²¹ = 242208269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244305221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122152710 + 122152711.

It is an arithmetic number, because the mean of its divisors is an integer number (122152711).

Almost surely, 2^244305421 is an apocalyptic number.

It is an amenable number.

244305421 is a deficient number, since it is larger than the sum of its proper divisors (1).

244305421 is an equidigital number, since it uses as much as digits as its factorization.

244305421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 244305421 is about 15630.2725823960. The cubic root of 244305421 is about 625.1405942908.

Adding to 244305421 its reverse (124503442), we get a palindrome (368808863).

The spelling of 244305421 in words is "two hundred forty-four million, three hundred five thousand, four hundred twenty-one".