878404880 has 40 divisors (see below), whose sum is σ = 2075783064. Its totient is φ = 345600000.

The previous prime is 878404843. The next prime is 878404939. The reversal of 878404880 is 88404878.

It can be written as a sum of positive squares in 4 ways, for example, as 119071744 + 759333136 = 10912^2 + 27556^2 .

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

It is a super-3 number, since 3×878404880³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85121 + ... + 94880.

Almost surely, 2^878404880 is an apocalyptic number.

878404880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

878404880 is an abundant number, since it is smaller than the sum of its proper divisors (1197378184).

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

878404880 is a wasteful number, since it uses less digits than its factorization.

878404880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180075 (or 180069 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 47.

The square root of 878404880 is about 29637.8960116942. The cubic root of 878404880 is about 957.7046144258.

The spelling of 878404880 in words is "eight hundred seventy-eight million, four hundred four thousand, eight hundred eighty".