804940740 has 60 divisors (see below), whose sum is σ = 2525133996. Its totient is φ = 214650432.

The previous prime is 804940739. The next prime is 804940751. The reversal of 804940740 is 47049408.

It can be written as a sum of positive squares in 2 ways, for example, as 571401216 + 233539524 = 23904^2 + 15282^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 804940695 and 804940704.

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 19 ways as a sum of consecutive naturals, for example, 246819 + ... + 250058.

Almost surely, 2^804940740 is an apocalyptic number.

It is an amenable number.

804940740 is an abundant number, since it is smaller than the sum of its proper divisors (1720193256).

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

804940740 is a wasteful number, since it uses less digits than its factorization.

804940740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496898 (or 496887 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 804940740 is about 28371.4775787233. The cubic root of 804940740 is about 930.2249195845.

The spelling of 804940740 in words is "eight hundred four million, nine hundred forty thousand, seven hundred forty".