1226304 has 42 divisors (see below), whose sum is σ = 3516630. Its totient is φ = 408576.

The previous prime is 1226299. The next prime is 1226311. The reversal of 1226304 is 4036221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 304704 = 960^2 + 552^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 2⁵ + 2⁹ + 6² + 3¹¹ + 0 + 4¹⁰ .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 489 + ... + 1640.

2^1226304 is an apocalyptic number.

It is an amenable number.

1226304 is an abundant number, since it is smaller than the sum of its proper divisors (2290326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226304 is a wasteful number, since it uses less digits than its factorization.

1226304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 2134 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1226304 is about 1107.3861115257. The cubic root of 1226304 is about 107.0367009514.

The spelling of 1226304 in words is "one million, two hundred twenty-six thousand, three hundred four".