1431392 has 24 divisors (see below), whose sum is σ = 2889432. Its totient is φ = 697600.

The previous prime is 1431389. The next prime is 1431413. The reversal of 1431392 is 2931341.

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 3 ways as a sum of consecutive naturals, for example, 767 + ... + 1857.

It is an arithmetic number, because the mean of its divisors is an integer number (120393).

2^1431392 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 1431392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444716).

1431392 is an abundant number, since it is smaller than the sum of its proper divisors (1458040).

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

1431392 is a wasteful number, since it uses less digits than its factorization.

1431392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1134 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 1431392 is about 1196.4079571785. The cubic root of 1431392 is about 112.6988614427.

The spelling of 1431392 in words is "one million, four hundred thirty-one thousand, three hundred ninety-two".