1920004 has 12 divisors (see below), whose sum is σ = 3451084. Its totient is φ = 933984.

The previous prime is 1920001. The next prime is 1920011. The reversal of 1920004 is 4000291.

It can be written as a sum of positive squares in 2 ways, for example, as 705600 + 1214404 = 840^2 + 1102^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1920004.

It is not an unprimeable number, because it can be changed into a prime (1920001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6339 + ... + 6634.

2^1920004 is an apocalyptic number.

It is an amenable number.

1920004 is a deficient number, since it is larger than the sum of its proper divisors (1531080).

1920004 is a wasteful number, since it uses less digits than its factorization.

1920004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13014 (or 13012 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1920004 is about 1385.6420894300. The cubic root of 1920004 is about 124.2893865501.

Adding to 1920004 its reverse (4000291), we get a palindrome (5920295).

The spelling of 1920004 in words is "one million, nine hundred twenty thousand, four".