1312432 has 20 divisors (see below), whose sum is σ = 2774376. Its totient is φ = 596480.

The previous prime is 1312411. The next prime is 1312459. The reversal of 1312432 is 2342131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553 + ... + 3904.

2^1312432 is an apocalyptic number.

It is an amenable number.

1312432 is an abundant number, since it is smaller than the sum of its proper divisors (1461944).

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

1312432 is a wasteful number, since it uses less digits than its factorization.

1312432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7476 (or 7470 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 1312432 is about 1145.6142457215. The cubic root of 1312432 is about 109.4860876245.

Adding to 1312432 its reverse (2342131), we get a palindrome (3654563).

The spelling of 1312432 in words is "one million, three hundred twelve thousand, four hundred thirty-two".