1209330 has 40 divisors (see below), whose sum is σ = 3253932. Its totient is φ = 322272.

The previous prime is 1209311. The next prime is 1209337. The reversal of 1209330 is 339021.

It can be written as a sum of positive squares in 2 ways, for example, as 1185921 + 23409 = 1089^2 + 153^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1209337) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64 + ... + 1556.

2^1209330 is an apocalyptic number.

1209330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1209330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626966).

1209330 is an abundant number, since it is smaller than the sum of its proper divisors (2044602).

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

1209330 is a wasteful number, since it uses less digits than its factorization.

1209330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1209330 is about 1099.6954123756. The cubic root of 1209330 is about 106.5405519049.

The spelling of 1209330 in words is "one million, two hundred nine thousand, three hundred thirty".