1228634 has 12 divisors (see below), whose sum is σ = 2026122. Its totient is φ = 558360.

The previous prime is 1228631. The next prime is 1228651. The reversal of 1228634 is 4368221.

It can be written as a sum of positive squares in only one way, i.e., 717409 + 511225 = 847^2 + 715^2 .

It is not an unprimeable number, because it can be changed into a prime (1228631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2297 + ... + 2780.

2^1228634 is an apocalyptic number.

1228634 is a deficient number, since it is larger than the sum of its proper divisors (797488).

1228634 is a wasteful number, since it uses less digits than its factorization.

1228634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101 (or 5090 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1228634 is about 1108.4376392021. The cubic root of 1228634 is about 107.1044486245.

The spelling of 1228634 in words is "one million, two hundred twenty-eight thousand, six hundred thirty-four".