1339443 has 32 divisors (see below), whose sum is σ = 2393600. Its totient is φ = 723168.

The previous prime is 1339433. The next prime is 1339463. The reversal of 1339443 is 3449331.

It is not a de Polignac number, because 1339443 - 2⁴ = 1339427 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3405 + ... + 3777.

It is an arithmetic number, because the mean of its divisors is an integer number (74800).

2^1339443 is an apocalyptic number.

1339443 is a deficient number, since it is larger than the sum of its proper divisors (1054157).

1339443 is a wasteful number, since it uses less digits than its factorization.

1339443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 402 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 1339443 is about 1157.3430779160. The cubic root of 1339443 is about 110.2320994585.

The spelling of 1339443 in words is "one million, three hundred thirty-nine thousand, four hundred forty-three".