918943804 has 12 divisors (see below), whose sum is σ = 1610895384. Its totient is φ = 458687984.

The previous prime is 918943799. The next prime is 918943847. The reversal of 918943804 is 408349819.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193339 + ... + 198034.

It is an arithmetic number, because the mean of its divisors is an integer number (134241282).

Almost surely, 2^918943804 is an apocalyptic number.

It is an amenable number.

918943804 is a deficient number, since it is larger than the sum of its proper divisors (691951580).

918943804 is a wasteful number, since it uses less digits than its factorization.

918943804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391964 (or 391962 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 918943804 is about 30314.0859007822. The cubic root of 918943804 is about 972.2164936883.

The spelling of 918943804 in words is "nine hundred eighteen million, nine hundred forty-three thousand, eight hundred four".