1329438 has 16 divisors (see below), whose sum is σ = 2900736. Its totient is φ = 402840.

The previous prime is 1329437. The next prime is 1329439. The reversal of 1329438 is 8349231.

It is an interprime number because it is at equal distance from previous prime (1329437) and next prime (1329439).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10006 + ... + 10137.

It is an arithmetic number, because the mean of its divisors is an integer number (181296).

2^1329438 is an apocalyptic number.

1329438 is an abundant number, since it is smaller than the sum of its proper divisors (1571298).

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

1329438 is a wasteful number, since it uses less digits than its factorization.

1329438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20159.

The product of its digits is 5184, while the sum is 30.

The square root of 1329438 is about 1153.0125758204. The cubic root of 1329438 is about 109.9569528532.

The spelling of 1329438 in words is "one million, three hundred twenty-nine thousand, four hundred thirty-eight".