1199939804 has 12 divisors (see below), whose sum is σ = 2399879664. Its totient is φ = 514259904.

The previous prime is 1199939801. The next prime is 1199939833. The reversal of 1199939804 is 4089399911.

1199939804 is an admirable number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199939801) 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, 21427469 + ... + 21427524.

It is an arithmetic number, because the mean of its divisors is an integer number (199989972).

Almost surely, 2^1199939804 is an apocalyptic number.

1199939804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1199939804 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.

1199939804 is a wasteful number, since it uses less digits than its factorization.

1199939804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42855004 (or 42855002 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 53.

The square root of 1199939804 is about 34640.1472860610. The cubic root of 1199939804 is about 1062.6408000535.

The spelling of 1199939804 in words is "one billion, one hundred ninety-nine million, nine hundred thirty-nine thousand, eight hundred four".