414444421 has 2 divisors, whose sum is σ = 414444422. Its totient is φ = 414444420.

The previous prime is 414444413. The next prime is 414444439. The reversal of 414444421 is 124444414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303247396 + 111197025 = 17414^2 + 10545^2 .

It is a cyclic number.

It is not a de Polignac number, because 414444421 - 2³ = 414444413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 414444421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (414444221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207222210 + 207222211.

It is an arithmetic number, because the mean of its divisors is an integer number (207222211).

Almost surely, 2^414444421 is an apocalyptic number.

It is an amenable number.

414444421 is a deficient number, since it is larger than the sum of its proper divisors (1).

414444421 is an equidigital number, since it uses as much as digits as its factorization.

414444421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8192, while the sum is 28.

The square root of 414444421 is about 20357.9080703298. The cubic root of 414444421 is about 745.5705858111.

Adding to 414444421 its reverse (124444414), we get a palindrome (538888835).

The spelling of 414444421 in words is "four hundred fourteen million, four hundred forty-four thousand, four hundred twenty-one".