1939804 has 6 divisors (see below), whose sum is σ = 3394664. Its totient is φ = 969900.

The previous prime is 1939801. The next prime is 1939837. The reversal of 1939804 is 4089391.

It is a self number, because there is not a number n which added to its sum of digits gives 1939804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242472 + ... + 242479.

2^1939804 is an apocalyptic number.

It is an amenable number.

1939804 is a deficient number, since it is larger than the sum of its proper divisors (1454860).

1939804 is a wasteful number, since it uses less digits than its factorization.

1939804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484955 (or 484953 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1939804 is about 1392.7684660416. The cubic root of 1939804 is about 124.7151701352.

The spelling of 1939804 in words is "one million, nine hundred thirty-nine thousand, eight hundred four".