1438479 has 40 divisors (see below), whose sum is σ = 2555520. Its totient is φ = 789264.

The previous prime is 1438477. The next prime is 1438483. The reversal of 1438479 is 9748341.

It is a happy number.

It is not a de Polignac number, because 1438479 - 2¹ = 1438477 is a prime.

Its product of digits (24192) is a multiple of the sum of its prime divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438477) 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 in 39 ways as a sum of consecutive naturals, for example, 24352 + ... + 24410.

It is an arithmetic number, because the mean of its divisors is an integer number (63888).

2^1438479 is an apocalyptic number.

1438479 is a deficient number, since it is larger than the sum of its proper divisors (1117041).

1438479 is an equidigital number, since it uses as much as digits as its factorization.

1438479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 112 counting only the distinct ones).

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

The square root of 1438479 is about 1199.3660825620. The cubic root of 1438479 is about 112.8845506869.

The spelling of 1438479 in words is "one million, four hundred thirty-eight thousand, four hundred seventy-nine".