1478439 has 16 divisors (see below), whose sum is σ = 2319840. Its totient is φ = 927360.

The previous prime is 1478437. The next prime is 1478443. The reversal of 1478439 is 9348741.

It is a happy number.

It is not a de Polignac number, because 1478439 - 2¹ = 1478437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (144990).

2^1478439 is an apocalyptic number.

1478439 is a deficient number, since it is larger than the sum of its proper divisors (841401).

1478439 is a wasteful number, since it uses less digits than its factorization.

1478439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247 (or 3241 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1478439 is about 1215.9107697525. The cubic root of 1478439 is about 113.9203044099.

The spelling of 1478439 in words is "one million, four hundred seventy-eight thousand, four hundred thirty-nine".