1992006 has 32 divisors (see below), whose sum is σ = 4550880. Its totient is φ = 645408.

The previous prime is 1991999. The next prime is 1992031. The reversal of 1992006 is 6002991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 1500 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (142215).

2^1992006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275440).

1992006 is an abundant number, since it is smaller than the sum of its proper divisors (2558874).

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

1992006 is a wasteful number, since it uses less digits than its factorization.

1992006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1992006 is about 1411.3844267243. The cubic root of 1992006 is about 125.8240173602.

Adding to 1992006 its reverse (6002991), we get a palindrome (7994997).

The spelling of 1992006 in words is "one million, nine hundred ninety-two thousand, six".