878623242 has 16 divisors (see below), whose sum is σ = 2008281792. Its totient is φ = 251035200.

The previous prime is 878623183. The next prime is 878623243. The reversal of 878623242 is 242326878.

878623242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 20919601 = 878623242 / (8 + 7 + 8 + 6 + 2 + 3 + 2 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 878623194 and 878623203.

It is not an unprimeable number, because it can be changed into a prime (878623243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10459759 + ... + 10459842.

It is an arithmetic number, because the mean of its divisors is an integer number (125517612).

Almost surely, 2^878623242 is an apocalyptic number.

878623242 is an abundant number, since it is smaller than the sum of its proper divisors (1129658550).

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

878623242 is a wasteful number, since it uses less digits than its factorization.

878623242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20919613.

The product of its digits is 258048, while the sum is 42.

The square root of 878623242 is about 29641.5796137790. The cubic root of 878623242 is about 957.7839662044.

The spelling of 878623242 in words is "eight hundred seventy-eight million, six hundred twenty-three thousand, two hundred forty-two".