1228401 has 12 divisors (see below), whose sum is σ = 1818180. Its totient is φ = 798720.

The previous prime is 1228399. The next prime is 1228429. The reversal of 1228401 is 1048221.

It can be written as a sum of positive squares in 2 ways, for example, as 230400 + 998001 = 480^2 + 999^2 .

It is not a de Polignac number, because 1228401 - 2¹ = 1228399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1228441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1296 + ... + 2033.

It is an arithmetic number, because the mean of its divisors is an integer number (151515).

2^1228401 is an apocalyptic number.

It is an amenable number.

1228401 is a deficient number, since it is larger than the sum of its proper divisors (589779).

1228401 is a wasteful number, since it uses less digits than its factorization.

1228401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376 (or 3373 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1228401 is about 1108.3325313280. The cubic root of 1228401 is about 107.0976777136.

The spelling of 1228401 in words is "one million, two hundred twenty-eight thousand, four hundred one".