878632140 has 96 divisors (see below), whose sum is σ = 2562840000. Its totient is φ = 224637952.

The previous prime is 878632123. The next prime is 878632141. The reversal of 878632140 is 41236878.

It is not an unprimeable number, because it can be changed into a prime (878632141) 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 31 ways as a sum of consecutive naturals, for example, 257566 + ... + 260954.

It is an arithmetic number, because the mean of its divisors is an integer number (26696250).

Almost surely, 2^878632140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878632140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281420000).

878632140 is an abundant number, since it is smaller than the sum of its proper divisors (1684207860).

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

878632140 is a wasteful number, since it uses less digits than its factorization.

878632140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 878632140 is about 29641.7297066146. The cubic root of 878632140 is about 957.7871994192.

The spelling of 878632140 in words is "eight hundred seventy-eight million, six hundred thirty-two thousand, one hundred forty".