1209328 has 10 divisors (see below), whose sum is σ = 2343104. Its totient is φ = 604656.

The previous prime is 1209311. The next prime is 1209337. The reversal of 1209328 is 8239021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37776 + ... + 37807.

2^1209328 is an apocalyptic number.

It is an amenable number.

1209328 is a deficient number, since it is larger than the sum of its proper divisors (1133776).

1209328 is an equidigital number, since it uses as much as digits as its factorization.

1209328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75591 (or 75585 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1209328 is about 1099.6945030325. The cubic root of 1209328 is about 106.5404931723.

It can be divided in two parts, 12093 and 28, that added together give a palindrome (12121).

The spelling of 1209328 in words is "one million, two hundred nine thousand, three hundred twenty-eight".