804390734 has 16 divisors (see below), whose sum is σ = 1460071008. Its totient is φ = 324460032.

The previous prime is 804390733. The next prime is 804390787. The reversal of 804390734 is 437093408.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804390731) by changing a digit.

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, 1689659 + ... + 1690134.

It is an arithmetic number, because the mean of its divisors is an integer number (91254438).

Almost surely, 2^804390734 is an apocalyptic number.

804390734 is a deficient number, since it is larger than the sum of its proper divisors (655680274).

804390734 is a wasteful number, since it uses less digits than its factorization.

804390734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379819.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 804390734 is about 28361.7829834445. The cubic root of 804390734 is about 930.0130009359.

The spelling of 804390734 in words is "eight hundred four million, three hundred ninety thousand, seven hundred thirty-four".