878402380 has 12 divisors (see below), whose sum is σ = 1844645040. Its totient is φ = 351360944.

The previous prime is 878402377. The next prime is 878402401. The reversal of 878402380 is 83204878.

878402380 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×878402380³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21960040 + ... + 21960079.

It is an arithmetic number, because the mean of its divisors is an integer number (153720420).

Almost surely, 2^878402380 is an apocalyptic number.

It is an amenable number.

878402380 is an abundant number, since it is smaller than the sum of its proper divisors (966242660).

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

878402380 is a wasteful number, since it uses less digits than its factorization.

878402380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43920128 (or 43920126 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 878402380 is about 29637.8538359308. The cubic root of 878402380 is about 957.7037058608.

The spelling of 878402380 in words is "eight hundred seventy-eight million, four hundred two thousand, three hundred eighty".