1439424 has 168 divisors, whose sum is σ = 5212080. Its totient is φ = 387072.

The previous prime is 1439413. The next prime is 1439429. The reversal of 1439424 is 4249341.

It is a tau number, because it is divible by the number of its divisors (168).

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1439429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84664 + ... + 84680.

2^1439424 is an apocalyptic number.

1439424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1439424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2606040).

1439424 is an abundant number, since it is smaller than the sum of its proper divisors (3772656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1439424 is a wasteful number, since it uses less digits than its factorization.

1439424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52 (or 29 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1439424 is about 1199.7599759952. The cubic root of 1439424 is about 112.9092648813.

The spelling of 1439424 in words is "one million, four hundred thirty-nine thousand, four hundred twenty-four".