878358642 has 32 divisors (see below), whose sum is σ = 2040595584. Its totient is φ = 246844800.

The previous prime is 878358629. The next prime is 878358647. The reversal of 878358642 is 246853878.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (878358647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168859 + ... + 173982.

It is an arithmetic number, because the mean of its divisors is an integer number (63768612).

Almost surely, 2^878358642 is an apocalyptic number.

878358642 is an abundant number, since it is smaller than the sum of its proper divisors (1162236942).

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

878358642 is a wasteful number, since it uses less digits than its factorization.

878358642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342914.

The product of its digits is 2580480, while the sum is 51.

The square root of 878358642 is about 29637.1159528049. The cubic root of 878358642 is about 957.6878100554.

The spelling of 878358642 in words is "eight hundred seventy-eight million, three hundred fifty-eight thousand, six hundred forty-two".