1992004 has 12 divisors (see below), whose sum is σ = 3984064. Its totient is φ = 853704.

The previous prime is 1991999. The next prime is 1992031. The reversal of 1992004 is 4002991.

1992004 is an admirable number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1992004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35544 + ... + 35599.

2^1992004 is an apocalyptic number.

1992004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1992004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1992004 is a wasteful number, since it uses less digits than its factorization.

1992004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71154 (or 71152 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1992004 is about 1411.3837182000. The cubic root of 1992004 is about 125.8239752505.

Adding to 1992004 its reverse (4002991), we get a palindrome (5994995).

The spelling of 1992004 in words is "one million, nine hundred ninety-two thousand, four".