804378078 has 24 divisors (see below), whose sum is σ = 1991793648. Its totient is φ = 229822272.

The previous prime is 804378067. The next prime is 804378097. The reversal of 804378078 is 870873408.

It is a super-4 number, since 4×804378078⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3191851 + ... + 3192102.

It is an arithmetic number, because the mean of its divisors is an integer number (82991402).

Almost surely, 2^804378078 is an apocalyptic number.

804378078 is an abundant number, since it is smaller than the sum of its proper divisors (1187415570).

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

804378078 is a wasteful number, since it uses less digits than its factorization.

804378078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383968 (or 6383965 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 804378078 is about 28361.5598654235. The cubic root of 804378078 is about 930.0081234115.

The spelling of 804378078 in words is "eight hundred four million, three hundred seventy-eight thousand, seventy-eight".