1431248 has 40 divisors (see below), whose sum is σ = 3416448. Its totient is φ = 565632.

The previous prime is 1431223. The next prime is 1431253. The reversal of 1431248 is 8421341.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 965 + ... + 1947.

2^1431248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1431248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1708224).

1431248 is an abundant number, since it is smaller than the sum of its proper divisors (1985200).

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

1431248 is a wasteful number, since it uses less digits than its factorization.

1431248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1005 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 1431248 is about 1196.3477755235. The cubic root of 1431248 is about 112.6950820959.

Adding to 1431248 its reverse (8421341), we get a palindrome (9852589).

The spelling of 1431248 in words is "one million, four hundred thirty-one thousand, two hundred forty-eight".