804688240 has 40 divisors (see below), whose sum is σ = 1914417648. Its totient is φ = 314388480.

The previous prime is 804688223. The next prime is 804688267. The reversal of 804688240 is 42886408.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 804688193 and 804688202.

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 7 ways as a sum of consecutive naturals, for example, 113521 + ... + 120400.

Almost surely, 2^804688240 is an apocalyptic number.

804688240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804688240 is an abundant number, since it is smaller than the sum of its proper divisors (1109729408).

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

804688240 is a wasteful number, since it uses less digits than its factorization.

804688240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233977 (or 233971 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 804688240 is about 28367.0273380910. The cubic root of 804688240 is about 930.1276427107.

The spelling of 804688240 in words is "eight hundred four million, six hundred eighty-eight thousand, two hundred forty".