1439434 has 4 divisors (see below), whose sum is σ = 2159154. Its totient is φ = 719716.

The previous prime is 1439429. The next prime is 1439437. The reversal of 1439434 is 4349341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4349341 = 89 ⋅48869.

It can be written as a sum of positive squares in only one way, i.e., 1108809 + 330625 = 1053^2 + 575^2 .

It is not an unprimeable number, because it can be changed into a prime (1439437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359857 + ... + 359860.

2^1439434 is an apocalyptic number.

1439434 is a deficient number, since it is larger than the sum of its proper divisors (719720).

1439434 is an equidigital number, since it uses as much as digits as its factorization.

1439434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719719.

The product of its digits is 5184, while the sum is 28.

The square root of 1439434 is about 1199.7641434882. The cubic root of 1439434 is about 112.9095263493.

The spelling of 1439434 in words is "one million, four hundred thirty-nine thousand, four hundred thirty-four".