1329144 has 16 divisors (see below), whose sum is σ = 3322920. Its totient is φ = 443040.

The previous prime is 1329143. The next prime is 1329161. The reversal of 1329144 is 4419231.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 55381 = 1329144 / (1 + 3 + 2 + 9 + 1 + 4 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329143) 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 3 ways as a sum of consecutive naturals, for example, 27667 + ... + 27714.

2^1329144 is an apocalyptic number.

It is an amenable number.

1329144 is an abundant number, since it is smaller than the sum of its proper divisors (1993776).

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

1329144 is a wasteful number, since it uses less digits than its factorization.

1329144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55390 (or 55386 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 1329144 is about 1152.8850766664. The cubic root of 1329144 is about 109.9488467393.

The spelling of 1329144 in words is "one million, three hundred twenty-nine thousand, one hundred forty-four".