1329424 has 10 divisors (see below), whose sum is σ = 2575790. Its totient is φ = 664704.

The previous prime is 1329407. The next prime is 1329437. The reversal of 1329424 is 4249231.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 589824 = 860^2 + 768^2 .

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41529 + ... + 41560.

It is an arithmetic number, because the mean of its divisors is an integer number (257579).

2^1329424 is an apocalyptic number.

It is an amenable number.

1329424 is a deficient number, since it is larger than the sum of its proper divisors (1246366).

1329424 is an equidigital number, since it uses as much as digits as its factorization.

1329424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83097 (or 83091 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 1329424 is about 1153.0065047518. The cubic root of 1329424 is about 109.9565668749.

The spelling of 1329424 in words is "one million, three hundred twenty-nine thousand, four hundred twenty-four".