1330623 has 12 divisors (see below), whose sum is σ = 2196688. Its totient is φ = 760320.

The previous prime is 1330621. The next prime is 1330633. The reversal of 1330623 is 3260331.

It is a happy number.

1330623 is a `hidden beast` number, since 13 + 30 + 623 = 666.

It is not a de Polignac number, because 1330623 - 2¹ = 1330621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330596 and 1330605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10498 + ... + 10623.

2^1330623 is an apocalyptic number.

1330623 is a deficient number, since it is larger than the sum of its proper divisors (866065).

1330623 is a wasteful number, since it uses less digits than its factorization.

1330623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21134 (or 21131 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1330623 is about 1153.5263325993. The cubic root of 1330623 is about 109.9896133443.

Adding to 1330623 its reverse (3260331), we get a palindrome (4590954).

It can be divided in two parts, 1330 and 623, that added together give a triangular number (1953 = T₆₂).

The spelling of 1330623 in words is "one million, three hundred thirty thousand, six hundred twenty-three".