1328619 has 8 divisors (see below), whose sum is σ = 1788480. Its totient is φ = 877256.

The previous prime is 1328617. The next prime is 1328647. The reversal of 1328619 is 9168231.

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

It is a cyclic number.

It is not a de Polignac number, because 1328619 - 2¹ = 1328617 is a prime.

It is a super-2 number, since 2×1328619² = 3530456894322, which contains 22 as substring.

1328619 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1328611) 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 7 ways as a sum of consecutive naturals, for example, 1749 + ... + 2390.

It is an arithmetic number, because the mean of its divisors is an integer number (223560).

2^1328619 is an apocalyptic number.

1328619 is a deficient number, since it is larger than the sum of its proper divisors (459861).

1328619 is a wasteful number, since it uses less digits than its factorization.

1328619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249.

The product of its digits is 2592, while the sum is 30.

The square root of 1328619 is about 1152.6573645277. The cubic root of 1328619 is about 109.9343685623.

It can be divided in two parts, 132861 and 9, that added together give a triangular number (132870 = T₅₁₅).

The spelling of 1328619 in words is "one million, three hundred twenty-eight thousand, six hundred nineteen".