1992144 has 120 divisors (see below), whose sum is σ = 6596800. Its totient is φ = 517440.

The previous prime is 1992139. The next prime is 1992163. The reversal of 1992144 is 4412991.

Its product of digits (2592) is a multiple of the sum of its prime factors (54).

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 23 ways as a sum of consecutive naturals, for example, 181099 + ... + 181109.

2^1992144 is an apocalyptic number.

1992144 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 1992144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3298400).

1992144 is an abundant number, since it is smaller than the sum of its proper divisors (4604656).

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

1992144 is a wasteful number, since it uses less digits than its factorization.

1992144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 23 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1992144 is about 1411.4333140464. The cubic root of 1992144 is about 125.8269228591.

The spelling of 1992144 in words is "one million, nine hundred ninety-two thousand, one hundred forty-four".