1443729 has 8 divisors (see below), whose sum is σ = 2200000. Its totient is φ = 824976.

The previous prime is 1443727. The next prime is 1443781. The reversal of 1443729 is 9273441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1443729 - 2¹ = 1443727 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1443696 and 1443705.

It is not an unprimeable number, because it can be changed into a prime (1443727) 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, 34354 + ... + 34395.

It is an arithmetic number, because the mean of its divisors is an integer number (275000).

2^1443729 is an apocalyptic number.

It is an amenable number.

1443729 is a deficient number, since it is larger than the sum of its proper divisors (756271).

1443729 is an equidigital number, since it uses as much as digits as its factorization.

1443729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68759.

The product of its digits is 6048, while the sum is 30.

The square root of 1443729 is about 1201.5527454090. The cubic root of 1443729 is about 113.0217150948.

The spelling of 1443729 in words is "one million, four hundred forty-three thousand, seven hundred twenty-nine".