804774690 has 48 divisors (see below), whose sum is σ = 2169917568. Its totient is φ = 214605936.

The previous prime is 804774661. The next prime is 804774731. The reversal of 804774690 is 96477408.

It is a super-2 number, since 2×804774690² = 1295324603329192200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163162 + ... + 168021.

It is an arithmetic number, because the mean of its divisors is an integer number (45206616).

Almost surely, 2^804774690 is an apocalyptic number.

804774690 is an abundant number, since it is smaller than the sum of its proper divisors (1365142878).

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

804774690 is a wasteful number, since it uses less digits than its factorization.

804774690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331205 (or 331193 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 804774690 is about 28368.5510733277. The cubic root of 804774690 is about 930.1609502913.

The spelling of 804774690 in words is "eight hundred four million, seven hundred seventy-four thousand, six hundred ninety".