1228441 has 2 divisors, whose sum is σ = 1228442. Its totient is φ = 1228440.

The previous prime is 1228429. The next prime is 1228457. The reversal of 1228441 is 1448221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1201216 + 27225 = 1096^2 + 165^2 .

It is an emirp because it is prime and its reverse (1448221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1228441 - 2⁹ = 1227929 is a prime.

1228441 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1228541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614220 + 614221.

It is an arithmetic number, because the mean of its divisors is an integer number (614221).

2^1228441 is an apocalyptic number.

It is an amenable number.

1228441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228441 is an equidigital number, since it uses as much as digits as its factorization.

1228441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 22.

The square root of 1228441 is about 1108.3505763070. The cubic root of 1228441 is about 107.0988401626.

The spelling of 1228441 in words is "one million, two hundred twenty-eight thousand, four hundred forty-one".