1340330 has 8 divisors (see below), whose sum is σ = 2412612. Its totient is φ = 536128.

The previous prime is 1340329. The next prime is 1340333. The reversal of 1340330 is 330431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1338649 + 1681 = 1157^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1340333) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 67007 + ... + 67026.

2^1340330 is an apocalyptic number.

1340330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340330 is a deficient number, since it is larger than the sum of its proper divisors (1072282).

1340330 is a wasteful number, since it uses less digits than its factorization.

1340330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134040.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 1340330 is about 1157.7262197946. The cubic root of 1340330 is about 110.2564265600.

Adding to 1340330 its reverse (330431), we get a palindrome (1670761).

The spelling of 1340330 in words is "one million, three hundred forty thousand, three hundred thirty".