1992432 has 80 divisors (see below), whose sum is σ = 5777408. Its totient is φ = 587520.

The previous prime is 1992409. The next prime is 1992433. The reversal of 1992432 is 2342991.

It is a self number, because there is not a number n which added to its sum of digits gives 1992432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19293 + ... + 19395.

2^1992432 is an apocalyptic number.

1992432 is a gapful number since it is divisible by the number (12) 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 1992432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2888704).

1992432 is an abundant number, since it is smaller than the sum of its proper divisors (3784976).

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

1992432 is a wasteful number, since it uses less digits than its factorization.

1992432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 152 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 1992432 is about 1411.5353343080. The cubic root of 1992432 is about 125.8329860767.

The spelling of 1992432 in words is "one million, nine hundred ninety-two thousand, four hundred thirty-two".