1329534 has 40 divisors (see below), whose sum is σ = 3092760. Its totient is φ = 426384.

The previous prime is 1329533. The next prime is 1329541. The reversal of 1329534 is 4359231.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1329498 and 1329507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329533) 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 19 ways as a sum of consecutive naturals, for example, 4557 + ... + 4839.

It is an arithmetic number, because the mean of its divisors is an integer number (77319).

2^1329534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1329534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546380).

1329534 is an abundant number, since it is smaller than the sum of its proper divisors (1763226).

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

1329534 is a wasteful number, since it uses less digits than its factorization.

1329534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 317 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 1329534 is about 1153.0542051439. The cubic root of 1329534 is about 109.9595994887.

The spelling of 1329534 in words is "one million, three hundred twenty-nine thousand, five hundred thirty-four".