878355040 has 24 divisors (see below), whose sum is σ = 2075114160. Its totient is φ = 351341952.

The previous prime is 878355019. The next prime is 878355041. The reversal of 878355040 is 40553878.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 878354984 and 878355002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878355041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744700 + ... + 2745019.

It is an arithmetic number, because the mean of its divisors is an integer number (86463090).

Almost surely, 2^878355040 is an apocalyptic number.

878355040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

878355040 is an abundant number, since it is smaller than the sum of its proper divisors (1196759120).

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

878355040 is a wasteful number, since it uses less digits than its factorization.

878355040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489734 (or 5489726 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 878355040 is about 29637.0551843465. The cubic root of 878355040 is about 957.6865009484.

The spelling of 878355040 in words is "eight hundred seventy-eight million, three hundred fifty-five thousand, forty".